diff --git a/wtypes.ipynb b/wtypes.ipynb
index afe5a26..242ab26 100644
--- a/wtypes.ipynb
+++ b/wtypes.ipynb
@@ -25,7 +25,7 @@
     "       https://json-schema.org/\n",
     "    \"\"\"\n",
     "    __version__ = \"0.0.1\"\n",
-    "    import jsonschema, munch, typing, abc, inspect, dataclasses, copy, re\n",
+    "    import jsonschema, munch, typing, abc, inspect, dataclasses, copy, re, functools\n",
     "    simpleTypes = jsonschema.Draft7Validator.META_SCHEMA['definitions']['simpleTypes']['enum']\n",
     "    ValidationError = jsonschema.ValidationError"
    ]
@@ -148,7 +148,7 @@
     "    type\n",
     "        \n",
     "            \"\"\"\n",
-    "            return type(name, (cls,), {'_schema': copy.copy(cls._schema)}, **schema)\n",
+    "            return type(name, (cls,), {'_schema': copy.deepcopy(cls._schema)}, **schema)\n",
     "        \n",
     "        def __neg__(cls): \n",
     "            \"\"\"The Not version of a type.\"\"\"\n",
@@ -240,8 +240,9 @@
     "            elif object == list: object = List\n",
     "            elif object == dict: object = Dict\n",
     "            elif object == int: object = Integer\n",
+    "            elif object == tuple: object = Tuple\n",
     "            elif object == float: object = Float\n",
-    "            elif object == None: object = Null\n",
+    "            elif object == None: object = None\n",
     "            elif object == bool: object = Bool\n",
     "        return object\n",
     "\n",
@@ -249,7 +250,7 @@
     "        \"\"\"infer a schema from an object.\"\"\"\n",
     "        if isinstance(object, dict):\n",
     "            return {k: _get_schema_from_typeish(v) for k, v in object.items()}\n",
-    "        if isinstance(object, tuple):\n",
+    "        if isinstance(object, (list, tuple)):\n",
     "            return list(map(_get_schema_from_typeish, object))\n",
     "        object = _python_to_wtype(object)\n",
     "        if hasattr(object, '_schema'):\n",
@@ -261,6 +262,8 @@
     "    def _object_to_webtype(object):\n",
     "        if isinstance(object, typing.Mapping): return Dict\n",
     "        if isinstance(object, str): return String\n",
+    "        if isinstance(object, tuple): return Tuple\n",
+    "        \n",
     "        if isinstance(object, typing.Sequence): return List\n",
     "        if isinstance(object, bool): return Bool\n",
     "        if isinstance(object, (int, float)): return Float\n",
@@ -301,14 +304,27 @@
     "    object\n",
     "        Return an instance of the object and carry along the schema information.\n",
     "    \"\"\"\n",
+    "            args = cls._resolve_defaults(*args, **kwargs)\n",
     "            args and cls.validate(args[0])\n",
-    "            if isinstance(cls, _ContainerType):\n",
-    "                if args:\n",
-    "                    return _object_to_webtype(args[0])(args[0])\n",
-    "            return super().__new__(cls, *args, **kwargs)\n",
-    "#             except: return  if args else cls()\n",
-    "#             return self\n",
-    "    "
+    "            if dataclasses.is_dataclass(cls):\n",
+    "                self = super().__new__(cls, *args, **kwargs)                \n",
+    "                cls.validate(vars(self))\n",
+    "            elif isinstance(cls, _ConstType) or issubclass(cls, Tuple):\n",
+    "                if args: return _object_to_webtype(args[0])(args[0])\n",
+    "            else:\n",
+    "                self = super().__new__(cls, *args, **kwargs)\n",
+    "                self.__init__(*args, **kwargs)\n",
+    "            args or  cls.validate(self)\n",
+    "            return self\n",
+    "        \n",
+    "        @classmethod\n",
+    "        def _resolve_defaults(cls, *args, **kwargs):\n",
+    "            if not args and not kwargs:\n",
+    "                if 'default' in cls._schema:\n",
+    "                    return cls._schema.default,\n",
+    "                elif 'properties' in cls._schema:\n",
+    "                    return {k: v['default'] for k, v in cls._schema['properties'] if 'default' in v},                \n",
+    "            return args"
    ]
   },
   {
@@ -331,6 +347,9 @@
     "        \"\"\"\n",
     "    class Examples(_NoInit, Trait, metaclass=_ConstType): \n",
     "        \"\"\"\"\"\"\n",
+    "    \n",
+    "    class Default(_NoInit, Trait, metaclass=_ConstType): \n",
+    "        \"\"\"\"\"\"\n",
     "        \n",
     "    class Title(_NoInit, Trait, _NoTitle, metaclass=_ConstType): \n",
     "        \"\"\"An empty type with a title\n",
@@ -381,6 +400,7 @@
     "    \n",
     "        >>> Bool(), Bool(True), Bool(False)\n",
     "        (False, True, False)\n",
+    "        >>> assert (Bool + Default[True])()\n",
     "        \n",
     "    Note\n",
     "    ----\n",
@@ -390,6 +410,7 @@
     "        _schema = dict(type='boolean')\n",
     "\n",
     "        def __new__(cls, *args):            \n",
+    "            args = cls._resolve_defaults(*args)\n",
     "            args = args or (bool(),)\n",
     "            args and cls.validate(args[0])\n",
     "            return args[0]\n",
@@ -401,6 +422,7 @@
     "    --------\n",
     "    \n",
     "        >>> Null(None)\n",
+    "        >>> assert (Null + Default[None])() is None\n",
     "        \n",
     "    .. Null Type:\n",
     "        https://json-schema.org/understanding-json-schema/reference/null.html\n",
@@ -409,6 +431,7 @@
     "        _schema = dict(type='null')\n",
     "        \n",
     "        def __new__(cls, *args):\n",
+    "            args = cls._resolve_defaults(*args)\n",
     "            args and cls.validate(args[0])    "
    ]
   },
@@ -451,24 +474,22 @@
     "        \"\"\"integer type\n",
     "        \n",
     "        \n",
-    "    >>> assert isinstance(10, Float)\n",
-    "    \n",
-    "    Symbollic conditions.\n",
+    "    Examples\n",
+    "    --------\n",
     "    \n",
-    "        >>> bounded = (10< Float)< 100\n",
+    "        >>> assert isinstance(10, Integer)\n",
+    "        >>> assert not isinstance(10.1, Integer)\n",
+    "        >>> (Integer+Default[9])(9)\n",
+    "        9\n",
+    "\n",
+    "\n",
+    "        >>> bounded = (10< Integer)< 100\n",
     "        >>> bounded._schema.toDict()\n",
-    "        {'type': 'number', 'exclusiveMinimum': 10, 'exclusiveMaximum': 100}\n",
+    "        {'type': 'integer', 'exclusiveMinimum': 10, 'exclusiveMaximum': 100}\n",
     "\n",
     "        >>> assert isinstance(12, bounded)\n",
     "        >>> assert not isinstance(0, bounded)\n",
-    "\n",
-    "    Multiples\n",
-    "    \n",
-    "        >>> assert (Integer+MultipleOf[3])(9) == 9\n",
-    "    \n",
-    "    \n",
-    "    .. Numeric Types:\n",
-    "        https://json-schema.org/understanding-json-schema/reference/numeric.html\n",
+    "        >>> assert (Integer/3)(9) == 9\n",
     "        \n",
     "        \"\"\"\n",
     "        _schema = dict(type='integer')\n",
@@ -478,16 +499,25 @@
     "        \"\"\"float type\n",
     "        \n",
     "        \n",
-    "        >>> assert isinstance(10, Integer)\n",
-    "        >>> assert not isinstance(10.1, Integer)\n",
-    "\n",
+    "        >>> assert isinstance(10, Float)\n",
+    "        >>> assert isinstance(10.1, Float)\n",
+    "    \n",
+    "    Symbollic conditions.\n",
+    "    \n",
     "        >>> bounded = (10< Float)< 100\n",
     "        >>> bounded._schema.toDict()\n",
     "        {'type': 'number', 'exclusiveMinimum': 10, 'exclusiveMaximum': 100}\n",
     "\n",
-    "        >>> assert isinstance(12, bounded)\n",
-    "        >>> assert not isinstance(0, bounded)\n",
-    "        >>> assert (Integer/3)(9) == 9\n",
+    "        >>> assert isinstance(12.1, bounded)\n",
+    "        >>> assert not isinstance(0.1, bounded)\n",
+    "\n",
+    "    Multiples\n",
+    "    \n",
+    "        >>> assert (Float+MultipleOf[3])(9) == 9\n",
+    "    \n",
+    "    \n",
+    "    .. Numeric Types:\n",
+    "        https://json-schema.org/understanding-json-schema/reference/numeric.html\n",
     "        \n",
     "        \"\"\"\n",
     "        _schema = dict(type='number')\n",
@@ -513,7 +543,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 41,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -535,21 +565,33 @@
     "        \"\"\"Base class for validating object types.\"\"\"\n",
     "        _schema = dict(type='object')\n",
     "        def __init_subclass__(cls, **kwargs): \n",
-    "            cls._schema = copy.copy(cls._schema)\n",
+    "            cls._schema = copy.deepcopy(cls._schema)\n",
     "            cls._schema.update(kwargs)\n",
     "            cls._schema.update(Properties[cls.__annotations__]._schema)\n",
+    "            required = []\n",
+    "            for key in cls.__annotations__:\n",
+    "                if hasattr(cls, key):\n",
+    "                    ...#cls._schema.properties[key]['default'] = getattr(cls, key)\n",
+    "                else: required.append(key)\n",
+    "            if required:\n",
+    "                cls._schema['required'] = required\n",
     "            \n",
-    "        def load(self, *object):\n",
-    "            self.update(__import__('anyconfig').load(object))\n",
-    "            type(self).validate(self)\n",
-    "            return self\n",
+    "        @classmethod\n",
+    "        def from_config_file(cls, *object):\n",
+    "            args = __import__('anyconfig').load(object)\n",
+    "            return cls(args)\n",
     "    \n",
-    "    class Dict(Trait, dict, _Object): \n",
+    "    class Dict(Trait, dict, _Object):\n",
     "        \"\"\"dict type\n",
     "        \n",
     "    Examples\n",
     "    --------\n",
     "    \n",
+    "        >>> assert istype(Dict, __import__('collections').abc.MutableMapping)\n",
+    "        >>> assert (Dict + Default[{'b': 'foo'}])() == {'b': 'foo'}\n",
+    "        >>> assert (Dict + Default[{'b': 'foo'}])({'a': 'bar'}) == {'a': 'bar'}\n",
+    "\n",
+    "    \n",
     "        >>> assert isinstance({}, Dict)\n",
     "        >>> assert not isinstance([], Dict)\n",
     "        \n",
@@ -568,11 +610,41 @@
     "        \n",
     "    .. Object Type\n",
     "        https://json-schema.org/understanding-json-schema/reference/object.html\n",
-    "        \"\"\"\n",
-    "        def __init__(self, *args, **kwargs):\n",
-    "            super().__init__(*args, **kwargs)\n",
-    "            type(self).validate(self)\n",
+    "        \"\"\" \n",
+    "        def __new__(cls, *args, **kwargs):\n",
+    "            if not (args or kwargs):\n",
+    "                args = cls._resolve_defaults()\n",
+    "            else:\n",
+    "                args = dict(*args, **kwargs),\n",
+    "            return super().__new__(cls, *args)\n",
     "\n",
+    "        def _validate(self):\n",
+    "            type(self).validate(self)\n",
+    "        \n",
+    "        def __setitem__(self, key, object):\n",
+    "            \"\"\"Only test the key being set to avoid invalid state.\"\"\"\n",
+    "            properties = self._schema.get('properties', None)\n",
+    "            if key in properties:\n",
+    "                jsonschema.validate(object, self._schema.get('properties', {}).get(key, {}), format_checker=jsonschema.draft7_format_checker)\n",
+    "            else:\n",
+    "                jsonschema.validate({key: object}, {**self._schema, 'required': []}, format_checker=jsonschema.draft7_format_checker)\n",
+    "            super().__setitem__(key, object)\n",
+    "            \n",
+    "        def update(self, *args, **kwargs):\n",
+    "            jsonschema.validate(\n",
+    "                dict(*args, **kwargs), {**self._schema, 'required': []}, \n",
+    "                format_checker=jsonschema.draft7_format_checker)\n",
+    "            super().update(*args, **kwargs)\n",
+    "        \n",
+    "        "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 43,
+   "metadata": {},
+   "outputs": [],
+   "source": [
     "    class Bunch(Dict, munch.Munch): \n",
     "        \"\"\"Bunch type\n",
     "        \n",
@@ -597,23 +669,36 @@
     "    \n",
     "        >>> class q(DataClass): a: int\n",
     "        >>> q._schema.toDict()\n",
-    "        {'type': 'object', 'properties': {'a': {'type': 'integer'}}}\n",
+    "        {'type': 'object', 'properties': {'a': {'type': 'integer'}}, 'required': ['a']}\n",
     "\n",
     "        >>> q(a=10)\n",
     "        q(a=10)\n",
     "        \n",
+    "        >>> assert not isinstance({}, q)\n",
+    "        \n",
     "        \"\"\"\n",
     "        def __new__(cls, *args, **kwargs):\n",
     "            self = super(Trait, cls).__new__(cls)\n",
+    "            # dataclass instantiates the defaults for us.\n",
     "            self.__init__(*args, **kwargs)\n",
     "            return self\n",
     "\n",
     "        def __init_subclass__(cls, **kwargs): \n",
-    "            cls._schema.update(Properties[cls.__annotations__]._schema)\n",
+    "            super().__init_subclass__()\n",
     "            dataclasses.dataclass(cls)\n",
-    "        def __post_init__(self):\n",
-    "            type(self).validate(vars(self))\n",
     "            \n",
+    "        def __setattr__(self, key, object):\n",
+    "            \"\"\"Only test the attribute being set to avoid invalid state.\"\"\"\n",
+    "            if isinstance(object, dict): object = object.get(key)\n",
+    "            properties = self._schema.get('properties', None)\n",
+    "            (\n",
+    "                jsonschema.validate(object, self._schema.get('properties', {}).get(key, {}), format_checker=jsonschema.draft7_format_checker)\n",
+    "                if key in properties else \n",
+    "                jsonschema.validate({key: object}, {**self._schema, 'required': []}, format_checker=jsonschema.draft7_format_checker)\n",
+    "            )    \n",
+    "            super().__setattr__(key, object)\n",
+    "            # trigger change here.\n",
+    "\n",
     "            \n",
     "    class AdditionalProperties(Trait, _NoInit, _NoTitle, metaclass=_ContainerType): \n",
     "        \"\"\"Additional object properties.\"\"\"\n",
@@ -640,13 +725,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 23,
    "metadata": {},
    "outputs": [],
    "source": [
     "    class _StringSchema(_SchemaMeta):\n",
     "        \"\"\"Meta operations for strings types.\n",
-    "        \n",
     "        \"\"\"\n",
     "        def __mod__(cls, object):\n",
     "            \"\"\"A pattern string type.\"\"\"\n",
@@ -669,6 +753,7 @@
     "    --------\n",
     "    \n",
     "        >>> assert isinstance('abc', String)\n",
+    "        >>> assert (String+Default['abc'])() == 'abc'\n",
     "        \n",
     "    String patterns\n",
     "    \n",
@@ -682,6 +767,7 @@
     "        >>> assert not isinstance('a'*100, (2<String)<10)\n",
     "        \"\"\"\n",
     "        _schema = dict(type='string')\n",
+    "        \n",
     "    class MinLength(Trait, _NoInit, _NoTitle, metaclass=_ConstType): \n",
     "        \"\"\"Minimum length of a string type.\"\"\"\n",
     "    class MaxLength(Trait, _NoInit, _NoTitle, metaclass=_ConstType): \n",
@@ -708,9 +794,23 @@
     "    class _ListSchema(_SchemaMeta):\n",
     "        \"\"\"Meta operations for list types.\"\"\"\n",
     "        def __getitem__(cls, object): \n",
-    "            if isinstance(object, tuple):\n",
+    "            if istype(cls, Tuple) and isinstance(object, (tuple, list)):\n",
+    "                return cls + Items[list(object)]\n",
+    "            elif isinstance(object, tuple):\n",
     "                return cls + Items[AnyOf[object]]\n",
     "            return cls + Items[object]\n",
+    "        \n",
+    "        def __gt__(cls, object): \n",
+    "            \"\"\"Minumum array length\"\"\"\n",
+    "            return cls + MinItems[object]\n",
+    "        def __lt__(cls, object): \n",
+    "            \"\"\"Maximum array length\"\"\"\n",
+    "            return cls + MaxItems[object]\n",
+    "        __rgt__ = __rge__ = __le__ = __lt__\n",
+    "        __rlt__ = __rle__ = __ge__ = __gt__\n",
+    "\n",
+    "        \n",
+    "\n",
     "\n",
     "    class List(Trait, list, metaclass=_ListSchema): \n",
     "        \"\"\"List type\n",
@@ -726,15 +826,67 @@
     "        \n",
     "    Typed list\n",
     "    \n",
+    "        >>> assert List[Integer]([1, 2, 3])\n",
     "        >>> assert isinstance([1], List[Integer])\n",
     "        >>> assert not isinstance([1.1], List[Integer])\n",
     "        \n",
+    "        >>> List[Integer, String]._schema.toDict()\n",
+    "        {'type': 'array', 'items': {'anyOf': [{'type': 'integer'}, {'type': 'string'}]}}\n",
+    "\n",
+    "        \n",
     "    Tuple        \n",
     "        \n",
+    "        >>> assert List[Integer, String]([1, 'abc', 2])\n",
     "        >>> assert isinstance([1, '1'], List[Integer, String])\n",
     "        >>> assert not isinstance([1, {}], List[Integer, String])\n",
     "        \"\"\"\n",
     "        _schema = dict(type='array')\n",
+    "        def __new__(cls, *args, **kwargs):\n",
+    "            args = cls._resolve_defaults(*args)\n",
+    "            if args and isinstance(args[0], tuple):\n",
+    "                args = list(args[0]) + list(args[1:]),\n",
+    "            return super().__new__(cls, *args, **kwargs)\n",
+    "\n",
+    "        def _verify_item(self, object, id=None):\n",
+    "            items = self._schema.get('items', None)\n",
+    "            if items:\n",
+    "                if isinstance(items, dict):\n",
+    "                    if isinstance(id, slice):\n",
+    "                        List[items].validate(object)\n",
+    "                    else: \n",
+    "                        jsonschema.validate(object, items, format_checker=jsonschema.draft7_format_checker)\n",
+    "                elif isinstance(items, list):\n",
+    "                    if isinstance(id, slice):\n",
+    "                        # condition for negative slices\n",
+    "                        Tuple[tuple(items[id])].validate(object)\n",
+    "                    elif isinstance(id, int):\n",
+    "                        # condition for negative integers\n",
+    "                        jsonschema.validate(object, items[id], format_checker=jsonschema.draft7_format_checker)\n",
+    "                        \n",
+    "                        \n",
+    "            \n",
+    "        def __setitem__(self, id, object): \n",
+    "            self._verify_item(object, id)\n",
+    "            super().__setitem__(id, object)\n",
+    "        \n",
+    "        def append(self, object): \n",
+    "            self._verify_item(object, len(self)+1)\n",
+    "            super().append(object)\n",
+    "        \n",
+    "        def insert(self, id, object): \n",
+    "            self._verify_item(object, id)\n",
+    "            super().insert(id, object)\n",
+    "        \n",
+    "        def extend(self, object): \n",
+    "            id = slice(len(self), len(self)+3)\n",
+    "            self._verify_item(object, id)\n",
+    "            super().extend(object)\n",
+    "            \n",
+    "        def pop(self, index=-1, default=None):\n",
+    "            value = super().pop(index, default)\n",
+    "            try: type(self).validate(self)\n",
+    "            except ValidationError: \n",
+    "                self.insert(index, value)\n",
     "\n",
     "    class Unique(List, uniqueItems=True):\n",
     "        \"\"\"Unique list type\n",
@@ -743,19 +895,13 @@
     "    Examples\n",
     "    --------\n",
     "    \n",
+    "        >>> assert Unique(list('abc'))\n",
     "        >>> assert isinstance([1,2], Unique)\n",
     "        >>> assert not isinstance([1,1], Unique)\n",
     "        \n",
     "        \"\"\"\n",
     "        \n",
-    "    class _TupleSchema(_SchemaMeta):\n",
-    "        \"\"\"Meta operations for list types.\"\"\"\n",
-    "        def __getitem__(cls, object): \n",
-    "            if not isinstance(object, tuple):\n",
-    "                object = object,\n",
-    "            return cls + Items[object]\n",
-    "    \n",
-    "    class Tuple(Trait, metaclass=_TupleSchema): \n",
+    "    class Tuple(List): \n",
     "        \"\"\"tuple type\n",
     "        \n",
     "    Note\n",
@@ -769,12 +915,14 @@
     "    --------\n",
     "    \n",
     "        >>> assert isinstance([1,2], Tuple)\n",
-    "        >>> assert isinstance([1,'1'], Tuple[Integer, String])\n",
-    "        >>> assert not isinstance([1,1], Tuple[Integer, String])\n",
-    "        \n",
-    "        \"\"\"\n",
-    "        _schema = dict(type='array')\n",
+    "        >>> assert Tuple[Integer, String]([1, 'abc'])\n",
+    "        >>> Tuple[Integer, String]._schema.toDict()\n",
+    "        {'type': 'array', 'items': [{'type': 'integer'}, {'type': 'string'}]}\n",
+    "\n",
+    "        >>> assert isinstance([1,'1'], Tuple[[Integer, String]])\n",
+    "        >>> assert not isinstance([1,1], Tuple[[Integer, String]])\n",
     "        \n",
+    "        \"\"\"        \n",
     "        \n",
     "    class UniqueItems(Trait, _NoInit, _NoTitle, metaclass=_ConstType): \n",
     "        \"\"\"Schema for unique items in a list.\"\"\"\n",
@@ -782,7 +930,10 @@
     "    class Items(Trait, _NoInit, _NoTitle, metaclass=_ContainerType): ...\n",
     "    class AdditionalItems(Trait, _NoInit, _NoTitle, metaclass=_ContainerType): ...\n",
     "    \n",
-    "    "
+    "    class MinItems(Trait, _NoInit, _NoTitle, metaclass=_ConstType): \n",
+    "        \"\"\"Minimum length of an array.\"\"\"\n",
+    "    class MaxItems(Trait, _NoInit, _NoTitle, metaclass=_ConstType): \n",
+    "        \"\"\"Maximum length of an array.\"\"\"\n"
    ]
   },
   {
@@ -821,6 +972,7 @@
     "    Examples\n",
     "    --------\n",
     "    \n",
+    "        >>> assert AnyOf[Integer, String]('abc')\n",
     "        >>> assert isinstance(10, AnyOf[Integer, String])\n",
     "        >>> assert not isinstance([], AnyOf[Integer, String])\n",
     "        \n",
@@ -833,6 +985,7 @@
     "    Examples\n",
     "    --------\n",
     "    \n",
+    "        >>> assert AllOf[Float>0, Integer/3](9)\n",
     "        >>> assert isinstance(9, AllOf[Float>0, Integer/3])\n",
     "        >>> assert not isinstance(-9, AllOf[Float>0, Integer/3])\n",
     "        \n",
@@ -846,6 +999,7 @@
     "    Examples\n",
     "    --------\n",
     "    \n",
+    "        >>> assert OneOf[Float>0, Integer/3](-9)\n",
     "        >>> assert isinstance(-9, OneOf[Float>0, Integer/3])\n",
     "        >>> assert not isinstance(9, OneOf[Float>0, Integer/3])\n",
     "\n",
@@ -854,13 +1008,14 @@
     "        https://json-schema.org/understanding-json-schema/reference/combining.html#oneof\n",
     "    \"\"\"\n",
     "\n",
-    "    class Enum(Trait, _NoInit, metaclass=_ConstType): \n",
+    "    class Enum(Trait, metaclass=_ConstType): \n",
     "        \"\"\"An enumerate type that is restricted to its inputs.\n",
     "        \n",
     "        \n",
     "    Examples\n",
     "    --------\n",
     "    \n",
+    "        >>> assert Enum['cat', 'dog']('cat')\n",
     "        >>> assert isinstance('cat', Enum['cat', 'dog'])\n",
     "        >>> assert not isinstance('🐢', Enum['cat', 'dog'])\n",
     "    \n",
@@ -911,9 +1066,16 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "    class If(Trait, metaclass=_ContainerType): ...\n",
-    "    class Then(Trait, metaclass=_ContainerType): ...\n",
-    "    class Else(Trait, metaclass=_ContainerType): ..."
+    "    class If(Trait, _NoInit, _NoTitle, metaclass=_ContainerType): \n",
+    "        \"\"\"if condition type\n",
+    "        \n",
+    "    .. Conditions:\n",
+    "        https://json-schema.org/understanding-json-schema/reference/conditionals.html\n",
+    "        \"\"\"\n",
+    "    class Then(Trait, _NoInit, _NoTitle, metaclass=_ContainerType): \n",
+    "        \"\"\"then condition type\"\"\"\n",
+    "    class Else(Trait, _NoInit, _NoTitle, metaclass=_ContainerType): \n",
+    "        \"\"\"else condition type\"\"\""
    ]
   },
   {
@@ -943,161 +1105,161 @@
      "output_type": "stream",
      "text": [
       "[NbConvertApp] Converting notebook wtypes.ipynb to python\n",
-      "[NbConvertApp] Writing 22252 bytes to wtypes.py\n",
+      "[NbConvertApp] Writing 27842 bytes to wtypes.py\n",
       "Fixing /Users/tonyfast/webtypes/wtypes.py\n",
-      "\u001b[22;0t\u001b]0;IPython: tonyfast/webtypes\u0007TestResults(failed=0, attempted=65)\n",
+      "\u001b[22;0t\u001b]0;IPython: tonyfast/webtypes\u0007TestResults(failed=0, attempted=81)\n",
       "Name                                                        Stmts   Miss  Cover\n",
       "-------------------------------------------------------------------------------\n",
       "/Users/tonyfast/.local/lib/python3.7/site-packages/six.py     472    433     8%\n",
-      "wtypes.py                                                     291     44    85%\n",
+      "wtypes.py                                                     367     73    80%\n",
       "-------------------------------------------------------------------------------\n",
-      "TOTAL                                                         763    477    37%\n"
+      "TOTAL                                                         839    506    40%\n"
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-       "<!-- 3&#45;&gt;42 -->\n",
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-       "<!-- 4&#45;&gt;42 -->\n",
+       "<!-- 4&#45;&gt;45 -->\n",
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-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"131\" y=\"-115.3\"> </text>\n",
+       "<!-- 15 -->\n",
+       "<g class=\"node\" id=\"node16\">\n",
+       "<title>15</title>\n",
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-       "<!-- 5&#45;&gt;14 -->\n",
+       "<!-- 5&#45;&gt;15 -->\n",
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-       "<title>5-&gt;14</title>\n",
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+       "<path d=\"M134.4588,-70.5446C134.2253,-85.6604 133.9493,-103.5338 133.7005,-119.6429\" fill=\"none\" stroke=\"#000000\"/>\n",
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        "<!-- 6&#45;&gt;11 -->\n",
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        "<title>6-&gt;11</title>\n",
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-       "<!-- 7&#45;&gt;42 -->\n",
+       "<!-- 7&#45;&gt;45 -->\n",
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-       "<title>7-&gt;42</title>\n",
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-       "<!-- 7&#45;&gt;49 -->\n",
+       "<!-- 7&#45;&gt;52 -->\n",
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-       "<!-- 8&#45;&gt;42 -->\n",
+       "<!-- 8&#45;&gt;45 -->\n",
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-       "<!-- 8&#45;&gt;49 -->\n",
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-       "<!-- 8&#45;&gt;50 -->\n",
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-       "<!-- 11&#45;&gt;42 -->\n",
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+       "<path d=\"M58.0736,-200.2809C63.5156,-217.6194 70.1335,-238.7044 75.9299,-257.172\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<!-- 13&#45;&gt;49 -->\n",
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+       "<title>15-&gt;45</title>\n",
+       "<path d=\"M150.2843,-200.1247C156.4797,-209.1233 164.3694,-217.737 174,-223 252.3102,-265.7957 1650.2168,-296.1964 1897.7069,-301.2551\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"1897.9046,-304.7597 1907.9738,-301.4638 1898.047,-297.7612 1897.9046,-304.7597\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 15&#45;&gt;55 -->\n",
+       "<g class=\"edge\" id=\"edge35\">\n",
+       "<title>15-&gt;55</title>\n",
+       "<path d=\"M121.9264,-200.2809C116.4844,-217.6194 109.8665,-238.7044 104.0701,-257.172\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"100.6914,-256.2494 101.036,-266.8387 107.3701,-258.3457 100.6914,-256.2494\" stroke=\"#000000\"/>\n",
        "</g>\n",
        "<!-- 16 -->\n",
        "<g class=\"node\" id=\"node17\">\n",
        "<title>16</title>\n",
-       "<polygon fill=\"none\" points=\"1763,-107.5 1763,-177.5 1817,-177.5 1817,-107.5 1763,-107.5\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1790\" y=\"-162.3\">Enum</text>\n",
-       "<polyline fill=\"none\" points=\"1763,-154.5 1817,-154.5 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"1763,-130.5 1817,-130.5 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1790\" y=\"-115.3\"> </text>\n",
-       "</g>\n",
-       "<!-- 16&#45;&gt;42 -->\n",
-       "<g class=\"edge\" id=\"edge35\">\n",
-       "<title>16-&gt;42</title>\n",
-       "<path d=\"M1762.7759,-171.0978C1748.4699,-186.1257 1730.7855,-204.7024 1715.5258,-220.7321\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"1712.6148,-218.7138 1708.2548,-228.3699 1717.6849,-223.5403 1712.6148,-218.7138\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"3663,-130 3663,-200 3717,-200 3717,-130 3663,-130\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"3690\" y=\"-184.8\">Else</text>\n",
+       "<polyline fill=\"none\" points=\"3663,-177 3717,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"3663,-153 3717,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"3690\" y=\"-137.8\"> </text>\n",
        "</g>\n",
-       "<!-- 16&#45;&gt;49 -->\n",
+       "<!-- 16&#45;&gt;45 -->\n",
        "<g class=\"edge\" id=\"edge36\">\n",
-       "<title>16-&gt;49</title>\n",
-       "<path d=\"M1817.3272,-172.7184C1820.0957,-174.7383 1822.999,-176.5441 1826,-178 1930.8776,-228.8783 2292.8496,-249.6472 2414.6463,-255.2998\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"2414.5227,-258.7977 2424.6714,-255.7559 2414.8409,-251.8049 2414.5227,-258.7977\" stroke=\"#000000\"/>\n",
+       "<title>16-&gt;45</title>\n",
+       "<path d=\"M3675.6931,-200.1165C3670.2723,-209.1149 3663.1372,-217.7306 3654,-223 3597.9545,-255.3214 2554.6029,-255.5002 2490,-259 2294.7995,-269.5747 2061.5693,-290.2845 1972.2771,-298.5109\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"1971.7488,-295.0447 1962.1135,-299.4507 1972.3934,-302.015 1971.7488,-295.0447\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 16&#45;&gt;52 -->\n",
+       "<g class=\"edge\" id=\"edge37\">\n",
+       "<title>16-&gt;52</title>\n",
+       "<path d=\"M3675.3756,-200.1923C3669.9755,-209.0771 3662.9307,-217.6138 3654,-223 3651.0274,-224.7928 2769.243,-285.4892 2569.0849,-299.2464\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"2568.7409,-295.7617 2559.0045,-299.9392 2569.2209,-302.7452 2568.7409,-295.7617\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 16&#45;&gt;53 -->\n",
+       "<g class=\"edge\" id=\"edge38\">\n",
+       "<title>16-&gt;53</title>\n",
+       "<path d=\"M3674.6397,-200.2252C3669.2877,-208.8889 3662.4518,-217.3036 3654,-223 3586.4694,-268.515 3340.6802,-291.3697 3239.7329,-299.0013\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"3239.2878,-295.5246 3229.5741,-299.7546 3239.8056,-302.5054 3239.2878,-295.5246\" stroke=\"#000000\"/>\n",
        "</g>\n",
        "<!-- 17 -->\n",
        "<g class=\"node\" id=\"node18\">\n",
        "<title>17</title>\n",
-       "<polygon fill=\"none\" points=\"1835,-107.5 1835,-177.5 1907,-177.5 1907,-107.5 1835,-107.5\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1871\" y=\"-162.3\">Examples</text>\n",
-       "<polyline fill=\"none\" points=\"1835,-154.5 1907,-154.5 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"1835,-130.5 1907,-130.5 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1871\" y=\"-115.3\"> </text>\n",
+       "<polygon fill=\"none\" points=\"759,-130 759,-200 813,-200 813,-130 759,-130\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"786\" y=\"-184.8\">Enum</text>\n",
+       "<polyline fill=\"none\" points=\"759,-177 813,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"759,-153 813,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"786\" y=\"-137.8\"> </text>\n",
        "</g>\n",
-       "<!-- 17&#45;&gt;42 -->\n",
-       "<g class=\"edge\" id=\"edge37\">\n",
-       "<title>17-&gt;42</title>\n",
-       "<path d=\"M1834.7922,-171.9013C1831.8598,-174.0239 1828.9067,-176.0815 1826,-178 1790.4857,-201.4406 1747.4069,-224.2579 1717.4756,-239.2941\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"1715.6351,-236.3007 1708.2459,-243.8935 1718.7572,-242.5659 1715.6351,-236.3007\" stroke=\"#000000\"/>\n",
-       "</g>\n",
-       "<!-- 17&#45;&gt;49 -->\n",
-       "<g class=\"edge\" id=\"edge38\">\n",
-       "<title>17-&gt;49</title>\n",
-       "<path d=\"M1907.0841,-173.4251C1909.998,-175.1468 1912.9841,-176.7009 1916,-178 2006.2609,-216.8798 2305.2087,-244.6986 2414.5169,-253.7911\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"2414.5377,-257.3045 2424.7912,-254.6368 2415.112,-250.3281 2414.5377,-257.3045\" stroke=\"#000000\"/>\n",
+       "<!-- 17&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge39\">\n",
+       "<title>17-&gt;45</title>\n",
+       "<path d=\"M800.627,-200.1879C806.0272,-209.0726 813.0713,-217.6104 822,-223 915.9041,-279.683 1714.8282,-297.9044 1897.7804,-301.3523\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"1897.907,-304.8552 1907.9701,-301.541 1898.0366,-297.8564 1897.907,-304.8552\" stroke=\"#000000\"/>\n",
        "</g>\n",
        "<!-- 18 -->\n",
        "<g class=\"node\" id=\"node19\">\n",
        "<title>18</title>\n",
-       "<polygon fill=\"none\" points=\"1925,-107.5 1925,-177.5 2055,-177.5 2055,-107.5 1925,-107.5\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1990\" y=\"-162.3\">ExclusiveMaximum</text>\n",
-       "<polyline fill=\"none\" points=\"1925,-154.5 2055,-154.5 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"1925,-130.5 2055,-130.5 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1990\" y=\"-115.3\"> </text>\n",
+       "<polygon fill=\"none\" points=\"1125,-130 1125,-200 1197,-200 1197,-130 1125,-130\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1161\" y=\"-184.8\">Examples</text>\n",
+       "<polyline fill=\"none\" points=\"1125,-177 1197,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"1125,-153 1197,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1161\" y=\"-137.8\"> </text>\n",
        "</g>\n",
-       "<!-- 18&#45;&gt;42 -->\n",
-       "<g class=\"edge\" id=\"edge39\">\n",
-       "<title>18-&gt;42</title>\n",
-       "<path d=\"M1924.8255,-174.3018C1921.8561,-175.5813 1918.9044,-176.8204 1916,-178 1847.2679,-205.9159 1764.5651,-232.0513 1717.8578,-246.1501\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"1716.7494,-242.8285 1708.1774,-249.0552 1718.7615,-249.5331 1716.7494,-242.8285\" stroke=\"#000000\"/>\n",
-       "</g>\n",
-       "<!-- 18&#45;&gt;49 -->\n",
+       "<!-- 18&#45;&gt;45 -->\n",
        "<g class=\"edge\" id=\"edge40\">\n",
-       "<title>18-&gt;49</title>\n",
-       "<path d=\"M2055.0041,-174.762C2058.0196,-175.917 2061.0276,-177.004 2064,-178 2188.5482,-219.7349 2343.1755,-242.9929 2414.9407,-252.2433\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"2414.5536,-255.7222 2424.9143,-253.507 2415.4336,-248.7777 2414.5536,-255.7222\" stroke=\"#000000\"/>\n",
+       "<title>18-&gt;45</title>\n",
+       "<path d=\"M1181.0534,-200.0845C1187.8317,-208.9675 1196.2088,-217.5303 1206,-223 1266.86,-256.9984 1757.2852,-290.6534 1897.6138,-299.6618\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"1897.6522,-303.1713 1907.8548,-300.3153 1898.098,-296.1855 1897.6522,-303.1713\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 18&#45;&gt;52 -->\n",
+       "<g class=\"edge\" id=\"edge41\">\n",
+       "<title>18-&gt;52</title>\n",
+       "<path d=\"M1180.6137,-200.1698C1187.4276,-209.1693 1195.9337,-217.7723 1206,-223 1281.5178,-262.2181 1886.0693,-253.7304 1971,-259 2165.2242,-271.0508 2397.081,-290.5647 2488.8081,-298.4883\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"2488.5142,-301.9759 2498.7789,-299.3517 2489.1182,-295.002 2488.5142,-301.9759\" stroke=\"#000000\"/>\n",
        "</g>\n",
        "<!-- 19 -->\n",
        "<g class=\"node\" id=\"node20\">\n",
        "<title>19</title>\n",
-       "<polygon fill=\"none\" points=\"970,-107.5 970,-177.5 1098,-177.5 1098,-107.5 970,-107.5\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1034\" y=\"-162.3\">ExclusiveMinimum</text>\n",
-       "<polyline fill=\"none\" points=\"970,-154.5 1098,-154.5 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"970,-130.5 1098,-130.5 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1034\" y=\"-115.3\"> </text>\n",
+       "<polygon fill=\"none\" points=\"1215,-130 1215,-200 1345,-200 1345,-130 1215,-130\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1280\" y=\"-184.8\">ExclusiveMaximum</text>\n",
+       "<polyline fill=\"none\" points=\"1215,-177 1345,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"1215,-153 1345,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1280\" y=\"-137.8\"> </text>\n",
        "</g>\n",
-       "<!-- 19&#45;&gt;42 -->\n",
-       "<g class=\"edge\" id=\"edge41\">\n",
-       "<title>19-&gt;42</title>\n",
-       "<path d=\"M1098.0391,-175.0013C1101.0373,-176.0916 1104.0333,-177.0995 1107,-178 1303.2575,-237.5717 1551.0052,-252.364 1643.7303,-255.9176\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"1643.6284,-259.4161 1653.7485,-256.2803 1643.8817,-252.4207 1643.6284,-259.4161\" stroke=\"#000000\"/>\n",
-       "</g>\n",
-       "<!-- 19&#45;&gt;49 -->\n",
+       "<!-- 19&#45;&gt;45 -->\n",
        "<g class=\"edge\" id=\"edge42\">\n",
-       "<title>19-&gt;49</title>\n",
-       "<path d=\"M1098.3684,-175.4311C1101.2519,-176.3875 1104.1367,-177.2518 1107,-178 1109.0332,-178.5313 2190.6216,-241.5914 2414.6709,-254.6498\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"2414.4973,-258.1455 2424.684,-255.2333 2414.9046,-251.1574 2414.4973,-258.1455\" stroke=\"#000000\"/>\n",
+       "<title>19-&gt;45</title>\n",
+       "<path d=\"M1317.0679,-200.2275C1328.1833,-209.0005 1340.9197,-217.4704 1354,-223 1453.2341,-264.9507 1785.5782,-291.538 1897.6981,-299.4877\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"1897.6255,-302.9911 1907.8458,-300.1988 1898.1149,-296.0083 1897.6255,-302.9911\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 19&#45;&gt;52 -->\n",
+       "<g class=\"edge\" id=\"edge43\">\n",
+       "<title>19-&gt;52</title>\n",
+       "<path d=\"M1316.039,-200.2837C1327.3273,-209.2858 1340.4115,-217.8615 1354,-223 1482.466,-271.5792 1833.9693,-249.7233 1971,-259 2165.1533,-272.1438 2397.0502,-291.0405 2488.7981,-298.6437\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"2488.5159,-302.1322 2498.7712,-299.4714 2489.095,-295.1562 2488.5159,-302.1322\" stroke=\"#000000\"/>\n",
        "</g>\n",
        "<!-- 20 -->\n",
        "<g class=\"node\" id=\"node21\">\n",
        "<title>20</title>\n",
-       "<polygon fill=\"none\" points=\"320,-107.5 320,-177.5 374,-177.5 374,-107.5 320,-107.5\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"347\" y=\"-162.3\">Float</text>\n",
-       "<polyline fill=\"none\" points=\"320,-154.5 374,-154.5 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"320,-130.5 374,-130.5 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"347\" y=\"-115.3\"> </text>\n",
+       "<polygon fill=\"none\" points=\"1363,-130 1363,-200 1491,-200 1491,-130 1363,-130\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1427\" y=\"-184.8\">ExclusiveMinimum</text>\n",
+       "<polyline fill=\"none\" points=\"1363,-177 1491,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"1363,-153 1491,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1427\" y=\"-137.8\"> </text>\n",
        "</g>\n",
-       "<!-- 20&#45;&gt;42 -->\n",
-       "<g class=\"edge\" id=\"edge43\">\n",
-       "<title>20-&gt;42</title>\n",
-       "<path d=\"M374.229,-172.9295C377.0188,-174.9035 379.9538,-176.6411 383,-178 500.8621,-230.5769 1443.7237,-252.2571 1643.7783,-256.2883\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"1643.7266,-259.7879 1653.7944,-256.4878 1643.8661,-252.7892 1643.7266,-259.7879\" stroke=\"#000000\"/>\n",
+       "<!-- 20&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge44\">\n",
+       "<title>20-&gt;45</title>\n",
+       "<path d=\"M1464.0462,-200.1591C1474.922,-208.8225 1487.3207,-217.2536 1500,-223 1571.4401,-255.3775 1806.0558,-286.4085 1897.7784,-297.6076\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"1897.3806,-301.0849 1907.729,-298.8129 1898.2225,-294.1357 1897.3806,-301.0849\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 20&#45;&gt;52 -->\n",
+       "<g class=\"edge\" id=\"edge45\">\n",
+       "<title>20-&gt;52</title>\n",
+       "<path d=\"M1462.5438,-200.1272C1473.6793,-209.1258 1486.5887,-217.739 1500,-223 1597.7218,-261.3348 1866.3358,-250.9673 1971,-259 2165.0271,-273.891 2396.9953,-291.8011 2488.7801,-298.892\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"2488.5174,-302.382 2498.7573,-299.6628 2489.0567,-295.4028 2488.5174,-302.382\" stroke=\"#000000\"/>\n",
        "</g>\n",
        "<!-- 21 -->\n",
        "<g class=\"node\" id=\"node22\">\n",
        "<title>21</title>\n",
-       "<polygon fill=\"none\" points=\"4030.5,-107.5 4030.5,-177.5 4087.5,-177.5 4087.5,-107.5 4030.5,-107.5\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"4059\" y=\"-162.3\">Format</text>\n",
-       "<polyline fill=\"none\" points=\"4030.5,-154.5 4087.5,-154.5 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"4030.5,-130.5 4087.5,-130.5 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"4059\" y=\"-115.3\"> </text>\n",
+       "<polygon fill=\"none\" points=\"183,-130 183,-200 237,-200 237,-130 183,-130\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"210\" y=\"-184.8\">Float</text>\n",
+       "<polyline fill=\"none\" points=\"183,-177 237,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"183,-153 237,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"210\" y=\"-137.8\"> </text>\n",
        "</g>\n",
-       "<!-- 21&#45;&gt;49 -->\n",
-       "<g class=\"edge\" id=\"edge44\">\n",
-       "<title>21-&gt;49</title>\n",
-       "<path d=\"M4030.1561,-173.0234C4027.2335,-174.977 4024.1684,-176.6843 4021,-178 3917.7026,-220.8943 3126.6727,-207.7171 3015,-214 2819.7829,-224.9833 2586.8053,-245.1427 2494.9958,-253.3644\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"2494.6669,-249.8798 2485.0202,-254.2606 2495.2933,-256.8517 2494.6669,-249.8798\" stroke=\"#000000\"/>\n",
-       "</g>\n",
-       "<!-- 21&#45;&gt;50 -->\n",
-       "<g class=\"edge\" id=\"edge45\">\n",
-       "<title>21-&gt;50</title>\n",
-       "<path d=\"M4030.0883,-172.8654C4027.1804,-174.8533 4024.1373,-176.6117 4021,-178 3936.1581,-215.5451 3278.7754,-247.1966 3101.7716,-255.1018\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"3101.3691,-251.6161 3091.5342,-255.5563 3101.6797,-258.6092 3101.3691,-251.6161\" stroke=\"#000000\"/>\n",
+       "<!-- 21&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge46\">\n",
+       "<title>21-&gt;45</title>\n",
+       "<path d=\"M224.3605,-200.0245C229.7824,-209.0208 236.9048,-217.6585 246,-223 319.656,-266.2574 1655.9683,-296.1681 1897.6811,-301.2363\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"1897.6568,-304.7365 1907.7276,-301.4458 1897.8028,-297.738 1897.6568,-304.7365\" stroke=\"#000000\"/>\n",
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        "<!-- 22 -->\n",
        "<g class=\"node\" id=\"node23\">\n",
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+       "<g class=\"edge\" id=\"edge61\">\n",
+       "<title>28-&gt;52</title>\n",
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+       "<g class=\"edge\" id=\"edge62\">\n",
+       "<title>28-&gt;53</title>\n",
+       "<path d=\"M3988.4847,-200.1627C3980.7901,-209.047 3971.4867,-217.5908 3961,-223 3833.8023,-288.6101 3383.1451,-299.7343 3239.99,-301.6172\" fill=\"none\" stroke=\"#000000\"/>\n",
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+       "<!-- 29&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge63\">\n",
+       "<title>29-&gt;45</title>\n",
+       "<path d=\"M1568.7933,-200.2512C1575.5923,-208.8087 1583.7657,-217.1636 1593,-223 1643.8586,-255.1445 1819.7357,-284.7024 1897.5096,-296.5393\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<title>29-&gt;49</title>\n",
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+       "<!-- 29&#45;&gt;52 -->\n",
+       "<g class=\"edge\" id=\"edge64\">\n",
+       "<title>29-&gt;52</title>\n",
+       "<path d=\"M1567.5531,-200.2456C1574.4828,-209.1312 1583.033,-217.655 1593,-223 1603.0508,-228.3899 2310.8237,-284.7283 2488.758,-298.8192\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<title>30-&gt;42</title>\n",
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+       "<!-- 30&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge65\">\n",
+       "<title>30-&gt;45</title>\n",
+       "<path d=\"M4087.6948,-200.0217C4080.845,-209.1354 4072.2425,-217.8368 4062,-223 3983.9946,-262.3226 2577.2466,-254.6244 2490,-259 2294.7586,-268.7917 2061.5522,-289.9559 1972.2717,-298.4074\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<title>30-&gt;49</title>\n",
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+       "<!-- 30&#45;&gt;52 -->\n",
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+       "<title>30-&gt;52</title>\n",
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+       "<!-- 30&#45;&gt;53 -->\n",
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+       "<title>30-&gt;53</title>\n",
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+       "<!-- 31&#45;&gt;45 -->\n",
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+       "<title>31-&gt;45</title>\n",
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+       "<title>31-&gt;52</title>\n",
+       "<path d=\"M2000.2174,-200.1006C2007.4094,-208.8723 2016.1183,-217.3733 2026,-223 2105.2791,-268.1422 2383.7187,-291.8473 2488.6151,-299.3371\" fill=\"none\" stroke=\"#000000\"/>\n",
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+       "<!-- 31&#45;&gt;53 -->\n",
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+       "<title>31-&gt;53</title>\n",
+       "<path d=\"M1999.4081,-200.0797C2006.687,-209.0772 2015.6439,-217.7017 2026,-223 2133.4625,-277.9788 2447.5638,-250.8771 2568,-259 2787.305,-273.7912 3049.6587,-291.8834 3152.0439,-298.9593\" fill=\"none\" stroke=\"#000000\"/>\n",
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+       "<title>32-&gt;45</title>\n",
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+       "<title>32-&gt;52</title>\n",
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-       "<title>33-&gt;42</title>\n",
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+       "<!-- 33&#45;&gt;45 -->\n",
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+       "<title>33-&gt;45</title>\n",
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+       "<g class=\"edge\" id=\"edge74\">\n",
+       "<title>33-&gt;52</title>\n",
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+       "<!-- 34&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge75\">\n",
+       "<title>34-&gt;45</title>\n",
+       "<path d=\"M512.5767,-200.2719C517.9761,-209.158 525.0324,-217.6754 534,-223 594.3182,-258.8143 1680.5087,-294.1421 1897.472,-300.8592\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<title>35-&gt;42</title>\n",
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-       "<title>35-&gt;49</title>\n",
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+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"570\" y=\"-184.8\">Null</text>\n",
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-       "<!-- 35&#45;&gt;50 -->\n",
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-       "<title>35-&gt;50</title>\n",
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+       "<!-- 35&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge76\">\n",
+       "<title>35-&gt;45</title>\n",
+       "<path d=\"M584.5872,-200.2543C589.9867,-209.1401 597.0405,-217.6618 606,-223 719.691,-290.739 1693.6567,-300.504 1897.6343,-301.8098\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<g class=\"edge\" id=\"edge73\">\n",
-       "<title>36-&gt;42</title>\n",
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+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1818\" y=\"-184.8\">OneOf</text>\n",
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-       "<title>36-&gt;49</title>\n",
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+       "<!-- 36&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge77\">\n",
+       "<title>36-&gt;45</title>\n",
+       "<path d=\"M1838.6902,-200.2292C1843.7148,-207.9606 1849.2939,-215.9404 1855,-223 1868.6879,-239.9348 1885.6375,-257.1116 1900.407,-271.1039\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<title>36-&gt;50</title>\n",
-       "<path d=\"M2983.9766,-177.7881C2994.757,-189.324 3006.8477,-202.2623 3018.0827,-214.2847\" fill=\"none\" stroke=\"#000000\"/>\n",
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+       "<!-- 36&#45;&gt;52 -->\n",
+       "<g class=\"edge\" id=\"edge78\">\n",
+       "<title>36-&gt;52</title>\n",
+       "<path d=\"M1833.5729,-200.2427C1839.1014,-209.0158 1846.195,-217.482 1855,-223 1908.8777,-256.7647 2351.1682,-289.7608 2488.489,-299.2746\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<title>37-&gt;42</title>\n",
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+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"1892\" y=\"-184.8\">Pattern</text>\n",
+       "<polyline fill=\"none\" points=\"1864,-177 1920,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"1864,-153 1920,-153 \" stroke=\"#000000\"/>\n",
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-       "<title>37-&gt;49</title>\n",
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+       "<!-- 37&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge79\">\n",
+       "<title>37-&gt;45</title>\n",
+       "<path d=\"M1903.0736,-200.2809C1908.5156,-217.6194 1915.1335,-238.7044 1920.9299,-257.172\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<title>37-&gt;50</title>\n",
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+       "<!-- 37&#45;&gt;52 -->\n",
+       "<g class=\"edge\" id=\"edge80\">\n",
+       "<title>37-&gt;52</title>\n",
+       "<path d=\"M1907.6245,-200.1609C1913.1535,-208.9333 1920.2345,-217.4194 1929,-223 2022.5597,-282.5647 2369.8949,-297.6139 2488.7833,-301.0595\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "<title>38-&gt;49</title>\n",
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-       "<title>38-&gt;50</title>\n",
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        "</g>\n",
-       "<!-- 57&#45;&gt;50 -->\n",
-       "<g class=\"edge\" id=\"edge101\">\n",
-       "<title>57-&gt;50</title>\n",
-       "<path d=\"M4873.7501,-174.9943C4870.6474,-176.0703 4867.5551,-177.079 4864.5,-178 4725.1158,-220.0176 4555.1155,-241.7389 4463.8767,-251.1154\" fill=\"none\" stroke=\"#000000\"/>\n",
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+       "<g class=\"node\" id=\"node55\">\n",
+       "<title>54</title>\n",
+       "<polygon fill=\"none\" points=\"4477.5,-130 4477.5,-200 4594.5,-200 4594.5,-130 4477.5,-130\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"4536\" y=\"-184.8\">_NumericSchema</text>\n",
+       "<polyline fill=\"none\" points=\"4477.5,-177 4594.5,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"4477.5,-153 4594.5,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"4536\" y=\"-137.8\"> </text>\n",
+       "</g>\n",
+       "<!-- 54&#45;&gt;57 -->\n",
+       "<g class=\"edge\" id=\"edge108\">\n",
+       "<title>54-&gt;57</title>\n",
+       "<path d=\"M4569.2207,-200.2809C4583.9161,-215.8876 4601.4696,-234.5298 4617.5113,-251.5663\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"4615.3562,-254.3831 4624.7597,-259.2642 4620.4526,-249.5844 4615.3562,-254.3831\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 56 -->\n",
+       "<g class=\"node\" id=\"node57\">\n",
+       "<title>56</title>\n",
+       "<polygon fill=\"none\" points=\"4612.5,-130 4612.5,-200 4717.5,-200 4717.5,-130 4612.5,-130\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"4665\" y=\"-184.8\">_ObjectSchema</text>\n",
+       "<polyline fill=\"none\" points=\"4612.5,-177 4717.5,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"4612.5,-153 4717.5,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"4665\" y=\"-137.8\"> </text>\n",
+       "</g>\n",
+       "<!-- 56&#45;&gt;57 -->\n",
+       "<g class=\"edge\" id=\"edge109\">\n",
+       "<title>56-&gt;57</title>\n",
+       "<path d=\"M4665,-200.2809C4665,-215.1846 4665,-232.8565 4665,-249.2547\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"4661.5001,-249.2642 4665,-259.2642 4668.5001,-249.2643 4661.5001,-249.2642\" stroke=\"#000000\"/>\n",
        "</g>\n",
        "<!-- 58 -->\n",
        "<g class=\"node\" id=\"node59\">\n",
        "<title>58</title>\n",
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-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"5102.5\" y=\"-162.3\">wtypes.minProperties</text>\n",
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-       "<polyline fill=\"none\" points=\"5033.5,-130.5 5171.5,-130.5 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"5102.5\" y=\"-115.3\"> </text>\n",
-       "</g>\n",
-       "<!-- 58&#45;&gt;42 -->\n",
-       "<g class=\"edge\" id=\"edge102\">\n",
-       "<title>58-&gt;42</title>\n",
-       "<path d=\"M5033.2366,-175.4261C5029.9814,-176.4014 5026.7262,-177.2689 5023.5,-178 4856.3574,-215.8742 3652.7892,-208.4221 3481.5,-214 3108.0935,-226.1598 2658.7276,-247.1161 2506.1605,-254.4086\" fill=\"none\" stroke=\"#000000\"/>\n",
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-       "</g>\n",
-       "<!-- 58&#45;&gt;49 -->\n",
-       "<g class=\"edge\" id=\"edge103\">\n",
-       "<title>58-&gt;49</title>\n",
-       "<path d=\"M5033.2094,-175.3096C5029.9615,-176.3164 5026.7153,-177.2225 5023.5,-178 4874.4754,-214.0371 4487.6029,-205.844 4334.5,-214 4062.4473,-228.4926 3737.8575,-246.2672 3604.4255,-253.5949\" fill=\"none\" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"3604.1834,-250.1028 3594.3904,-254.146 3604.5674,-257.0922 3604.1834,-250.1028\" stroke=\"#000000\"/>\n",
-       "</g>\n",
-       "<!-- 58&#45;&gt;50 -->\n",
-       "<g class=\"edge\" id=\"edge104\">\n",
-       "<title>58-&gt;50</title>\n",
-       "<path d=\"M5033.1323,-175.0147C5029.9053,-176.1013 5026.6846,-177.1048 5023.5,-178 4824.7116,-233.8798 4579.1911,-250.3055 4463.9932,-255.0785\" fill=\"none\" stroke=\"#000000\"/>\n",
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+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"4787\" y=\"-184.8\">_StringSchema</text>\n",
+       "<polyline fill=\"none\" points=\"4736,-177 4838,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"4736,-153 4838,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"4787\" y=\"-137.8\"> </text>\n",
+       "</g>\n",
+       "<!-- 58&#45;&gt;57 -->\n",
+       "<g class=\"edge\" id=\"edge110\">\n",
+       "<title>58-&gt;57</title>\n",
+       "<path d=\"M4755.582,-200.2809C4741.684,-215.8876 4725.083,-234.5298 4709.9118,-251.5663\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"4707.0933,-249.4685 4703.0567,-259.2642 4712.3209,-254.1238 4707.0933,-249.4685\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 59 -->\n",
+       "<g class=\"node\" id=\"node60\">\n",
+       "<title>59</title>\n",
+       "<polygon fill=\"none\" points=\"2717.5,-130 2717.5,-200 2814.5,-200 2814.5,-130 2717.5,-130\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"2766\" y=\"-184.8\">maxProperties</text>\n",
+       "<polyline fill=\"none\" points=\"2717.5,-177 2814.5,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"2717.5,-153 2814.5,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"2766\" y=\"-137.8\"> </text>\n",
+       "</g>\n",
+       "<!-- 59&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge111\">\n",
+       "<title>59-&gt;45</title>\n",
+       "<path d=\"M2738.4722,-200.202C2729.709,-209.087 2719.3185,-217.6213 2708,-223 2640.9883,-254.8448 2118.2979,-290.2983 1972.5949,-299.6412\" fill=\"none\" stroke=\"#000000\"/>\n",
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+       "</g>\n",
+       "<!-- 59&#45;&gt;52 -->\n",
+       "<g class=\"edge\" id=\"edge112\">\n",
+       "<title>59-&gt;52</title>\n",
+       "<path d=\"M2735.0866,-200.1174C2726.8176,-208.2823 2717.5166,-216.4821 2708,-223 2664.0077,-253.13 2606.6644,-276.0127 2568.8834,-289.2075\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"2567.5715,-285.9572 2559.247,-292.511 2569.8416,-292.5789 2567.5715,-285.9572\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 59&#45;&gt;53 -->\n",
+       "<g class=\"edge\" id=\"edge113\">\n",
+       "<title>59-&gt;53</title>\n",
+       "<path d=\"M2793.9385,-200.0406C2802.4267,-208.7036 2812.3529,-217.1641 2823,-223 2879.6149,-254.0321 3066.5259,-283.6418 3152.2909,-295.9785\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"3151.8391,-299.4494 3162.2331,-297.3963 3152.8274,-292.5195 3151.8391,-299.4494\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 60 -->\n",
+       "<g class=\"node\" id=\"node61\">\n",
+       "<title>60</title>\n",
+       "<polygon fill=\"none\" points=\"2832.5,-130 2832.5,-200 2927.5,-200 2927.5,-130 2832.5,-130\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"2880\" y=\"-184.8\">minProperties</text>\n",
+       "<polyline fill=\"none\" points=\"2832.5,-177 2927.5,-177 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"2832.5,-153 2927.5,-153 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"middle\" x=\"2880\" y=\"-137.8\"> </text>\n",
+       "</g>\n",
+       "<!-- 60&#45;&gt;45 -->\n",
+       "<g class=\"edge\" id=\"edge114\">\n",
+       "<title>60-&gt;45</title>\n",
+       "<path d=\"M2853.0886,-200.2937C2844.4788,-209.1801 2834.2331,-217.6923 2823,-223 2803.4228,-232.2504 2139.204,-285.72 1972.6045,-299.0102\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"1972.0529,-295.5429 1962.3626,-299.8265 1972.6092,-302.5208 1972.0529,-295.5429\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 60&#45;&gt;52 -->\n",
+       "<g class=\"edge\" id=\"edge115\">\n",
+       "<title>60-&gt;52</title>\n",
+       "<path d=\"M2851.2542,-200.2687C2842.9002,-208.7227 2833.2424,-217.0222 2823,-223 2740.7531,-271.0022 2628.64,-290.5685 2569.4462,-297.9477\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"2568.8894,-294.4892 2559.3741,-299.1486 2569.7182,-301.44 2568.8894,-294.4892\" stroke=\"#000000\"/>\n",
+       "</g>\n",
+       "<!-- 60&#45;&gt;53 -->\n",
+       "<g class=\"edge\" id=\"edge116\">\n",
+       "<title>60-&gt;53</title>\n",
+       "<path d=\"M2908.2859,-200.0558C2916.493,-208.5114 2925.9701,-216.8649 2936,-223 3004.9997,-265.2055 3098.1965,-286.3129 3152.2307,-295.6515\" fill=\"none\" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"3151.7329,-299.1168 3162.173,-297.3129 3152.8867,-292.2125 3151.7329,-299.1168\" stroke=\"#000000\"/>\n",
        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -3303,12 +2385,11 @@
    ],
    "source": [
     "    if __name__ == \"__main__\":\n",
+    "        from IPython import get_ipython\n",
     "        if \"__file__\" in locals():\n",
-    "            if \"covtest\" in __import__(\"sys\").argv:\n",
-    "                print(__import__(\"doctest\").testmod(optionflags=8))\n",
+    "            if \"covtest\" in __import__(\"sys\").argv: print(__import__(\"doctest\").testmod(optionflags=8))\n",
     "        else:\n",
     "            import IPython\n",
-    "\n",
     "            get_ipython().system(\n",
     "                \"jupyter nbconvert --to python --TemplateExporter.exclude_input_prompt=True wtypes.ipynb\"\n",
     "            )\n",
@@ -3320,25 +2401,8 @@
     "            get_ipython().system(\"coverage html\")\n",
     "            with IPython.utils.capture.capture_output():\n",
     "                get_ipython().system(\"pyreverse wtypes -osvg -pwtypes\")\n",
-    "            IPython.display.display(IPython.display.SVG(\"classes_wtypes.svg\"))\n",
-    "            with IPython.utils.capture.capture_output():\n",
-    "                get_ipython().system(\"pyreverse wtypes -osvg -pwtypes -my -s1\")\n",
-    "            IPython.display.display(IPython.display.SVG(\"classes_wtypes.svg\"))"
+    "            IPython.display.display(IPython.display.SVG(\"classes_wtypes.svg\"))\n"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {
diff --git a/wtypes.py b/wtypes.py
index 7d1d676..7c7a2f2 100644
--- a/wtypes.py
+++ b/wtypes.py
@@ -23,6 +23,7 @@ __version__ = "0.0.1"
 import abc
 import copy
 import dataclasses
+import functools
 import inspect
 import re
 import typing
@@ -136,7 +137,7 @@ Returns
 type
     
         """
-        return type(name, (cls,), {"_schema": copy.copy(cls._schema)}, **schema)
+        return type(name, (cls,), {"_schema": copy.deepcopy(cls._schema)}, **schema)
 
     def __neg__(cls):
         """The Not version of a type."""
@@ -237,10 +238,12 @@ def _python_to_wtype(object):
             object = Dict
         elif object == int:
             object = Integer
+        elif object == tuple:
+            object = Tuple
         elif object == float:
             object = Float
         elif object == None:
-            object = Null
+            object = None
         elif object == bool:
             object = Bool
     return object
@@ -250,7 +253,7 @@ def _get_schema_from_typeish(object):
     """infer a schema from an object."""
     if isinstance(object, dict):
         return {k: _get_schema_from_typeish(v) for k, v in object.items()}
-    if isinstance(object, tuple):
+    if isinstance(object, (list, tuple)):
         return list(map(_get_schema_from_typeish, object))
     object = _python_to_wtype(object)
     if hasattr(object, "_schema"):
@@ -267,6 +270,9 @@ def _object_to_webtype(object):
         return Dict
     if isinstance(object, str):
         return String
+    if isinstance(object, tuple):
+        return Tuple
+
     if isinstance(object, typing.Sequence):
         return List
     if isinstance(object, bool):
@@ -310,15 +316,34 @@ Returns
 object
     Return an instance of the object and carry along the schema information.
 """
+        args = cls._resolve_defaults(*args, **kwargs)
         args and cls.validate(args[0])
-        if isinstance(cls, _ContainerType):
+        if dataclasses.is_dataclass(cls):
+            self = super().__new__(cls, *args, **kwargs)
+            cls.validate(vars(self))
+        elif isinstance(cls, _ConstType) or issubclass(cls, Tuple):
             if args:
                 return _object_to_webtype(args[0])(args[0])
-        return super().__new__(cls, *args, **kwargs)
-
+        else:
+            self = super().__new__(cls, *args, **kwargs)
+            self.__init__(*args, **kwargs)
+        args or cls.validate(self)
+        return self
 
-#             except: return  if args else cls()
-#             return self
+    @classmethod
+    def _resolve_defaults(cls, *args, **kwargs):
+        if not args and not kwargs:
+            if "default" in cls._schema:
+                return (cls._schema.default,)
+            elif "properties" in cls._schema:
+                return (
+                    {
+                        k: v["default"]
+                        for k, v in cls._schema["properties"]
+                        if "default" in v
+                    },
+                )
+        return args
 
 
 class Description(_NoInit, Trait, _NoTitle, metaclass=_ConstType):
@@ -339,6 +364,10 @@ class Examples(_NoInit, Trait, metaclass=_ConstType):
     """"""
 
 
+class Default(_NoInit, Trait, metaclass=_ConstType):
+    """"""
+
+
 class Title(_NoInit, Trait, _NoTitle, metaclass=_ConstType):
     """An empty type with a title
     
@@ -379,6 +408,7 @@ Examples
 
     >>> Bool(), Bool(True), Bool(False)
     (False, True, False)
+    >>> assert (Bool + Default[True])()
     
 Note
 ----
@@ -389,6 +419,7 @@ It is not possible to base class ``bool`` so object creation is customized.
     _schema = dict(type="boolean")
 
     def __new__(cls, *args):
+        args = cls._resolve_defaults(*args)
         args = args or (bool(),)
         args and cls.validate(args[0])
         return args[0]
@@ -401,6 +432,7 @@ Examples
 --------
 
     >>> Null(None)
+    >>> assert (Null + Default[None])() is None
     
 .. Null Type:
     https://json-schema.org/understanding-json-schema/reference/null.html
@@ -410,6 +442,7 @@ Examples
     _schema = dict(type="null")
 
     def __new__(cls, *args):
+        args = cls._resolve_defaults(*args)
         args and cls.validate(args[0])
 
 
@@ -449,24 +482,22 @@ class Integer(Trait, int, metaclass=_NumericSchema):
     """integer type
     
     
->>> assert isinstance(10, Float)
+Examples
+--------
 
-Symbollic conditions.
+    >>> assert isinstance(10, Integer)
+    >>> assert not isinstance(10.1, Integer)
+    >>> (Integer+Default[9])(9)
+    9
 
-    >>> bounded = (10< Float)< 100
+
+    >>> bounded = (10< Integer)< 100
     >>> bounded._schema.toDict()
-    {'type': 'number', 'exclusiveMinimum': 10, 'exclusiveMaximum': 100}
+    {'type': 'integer', 'exclusiveMinimum': 10, 'exclusiveMaximum': 100}
 
     >>> assert isinstance(12, bounded)
     >>> assert not isinstance(0, bounded)
-
-Multiples
-
-    >>> assert (Integer+MultipleOf[3])(9) == 9
-
-
-.. Numeric Types:
-    https://json-schema.org/understanding-json-schema/reference/numeric.html
+    >>> assert (Integer/3)(9) == 9
     
     """
 
@@ -477,16 +508,25 @@ class Float(Trait, float, metaclass=_NumericSchema):
     """float type
     
     
-    >>> assert isinstance(10, Integer)
-    >>> assert not isinstance(10.1, Integer)
+    >>> assert isinstance(10, Float)
+    >>> assert isinstance(10.1, Float)
+
+Symbollic conditions.
 
     >>> bounded = (10< Float)< 100
     >>> bounded._schema.toDict()
     {'type': 'number', 'exclusiveMinimum': 10, 'exclusiveMaximum': 100}
 
-    >>> assert isinstance(12, bounded)
-    >>> assert not isinstance(0, bounded)
-    >>> assert (Integer/3)(9) == 9
+    >>> assert isinstance(12.1, bounded)
+    >>> assert not isinstance(0.1, bounded)
+
+Multiples
+
+    >>> assert (Float+MultipleOf[3])(9) == 9
+
+
+.. Numeric Types:
+    https://json-schema.org/understanding-json-schema/reference/numeric.html
     
     """
 
@@ -537,14 +577,22 @@ class _Object(metaclass=_ObjectSchema):
     _schema = dict(type="object")
 
     def __init_subclass__(cls, **kwargs):
-        cls._schema = copy.copy(cls._schema)
+        cls._schema = copy.deepcopy(cls._schema)
         cls._schema.update(kwargs)
         cls._schema.update(Properties[cls.__annotations__]._schema)
+        required = []
+        for key in cls.__annotations__:
+            if hasattr(cls, key):
+                ...  # cls._schema.properties[key]['default'] = getattr(cls, key)
+            else:
+                required.append(key)
+        if required:
+            cls._schema["required"] = required
 
-    def load(self, *object):
-        self.update(__import__("anyconfig").load(object))
-        type(self).validate(self)
-        return self
+    @classmethod
+    def from_config_file(cls, *object):
+        args = __import__("anyconfig").load(object)
+        return cls(args)
 
 
 class Dict(Trait, dict, _Object):
@@ -553,6 +601,8 @@ class Dict(Trait, dict, _Object):
 Examples
 --------
 
+    >>> assert istype(Dict, __import__('collections').abc.MutableMapping)
+
     >>> assert isinstance({}, Dict)
     >>> assert not isinstance([], Dict)
     
@@ -573,10 +623,37 @@ Examples
     https://json-schema.org/understanding-json-schema/reference/object.html
     """
 
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
+    def __new__(cls, *args, **kwargs):
+        return super().__new__(cls, dict(*args, **kwargs))
+
+    def _validate(self):
         type(self).validate(self)
 
+    def __setitem__(self, key, object):
+        """Only test the key being set to avoid invalid state."""
+        properties = self._schema.get("properties", None)
+        if key in properties:
+            jsonschema.validate(
+                object,
+                self._schema.get("properties", {}).get(key, {}),
+                format_checker=jsonschema.draft7_format_checker,
+            )
+        else:
+            jsonschema.validate(
+                {key: object},
+                {**self._schema, "required": []},
+                format_checker=jsonschema.draft7_format_checker,
+            )
+        super().__setitem__(key, object)
+
+    def update(self, *args, **kwargs):
+        jsonschema.validate(
+            dict(*args, **kwargs),
+            {**self._schema, "required": []},
+            format_checker=jsonschema.draft7_format_checker,
+        )
+        super().update(*args, **kwargs)
+
 
 class Bunch(Dict, munch.Munch):
     """Bunch type
@@ -604,11 +681,13 @@ Examples
 
     >>> class q(DataClass): a: int
     >>> q._schema.toDict()
-    {'type': 'object', 'properties': {'a': {'type': 'integer'}}}
+    {'type': 'object', 'properties': {'a': {'type': 'integer'}}, 'required': ['a']}
 
     >>> q(a=10)
     q(a=10)
     
+    >>> assert not isinstance({}, q)
+    
     """
 
     def __new__(cls, *args, **kwargs):
@@ -617,11 +696,29 @@ Examples
         return self
 
     def __init_subclass__(cls, **kwargs):
-        cls._schema.update(Properties[cls.__annotations__]._schema)
+        super().__init_subclass__()
         dataclasses.dataclass(cls)
 
-    def __post_init__(self):
-        type(self).validate(vars(self))
+    def __setattr__(self, key, object):
+        """Only test the attribute being set to avoid invalid state."""
+        if isinstance(object, dict):
+            object = object.get(key)
+        properties = self._schema.get("properties", None)
+        (
+            jsonschema.validate(
+                object,
+                self._schema.get("properties", {}).get(key, {}),
+                format_checker=jsonschema.draft7_format_checker,
+            )
+            if key in properties
+            else jsonschema.validate(
+                {key: object},
+                {**self._schema, "required": []},
+                format_checker=jsonschema.draft7_format_checker,
+            )
+        )
+        super().__setattr__(key, object)
+        # trigger change here.
 
 
 class AdditionalProperties(Trait, _NoInit, _NoTitle, metaclass=_ContainerType):
@@ -657,7 +754,6 @@ class PatternProperties(Trait, _NoInit, _NoTitle, metaclass=_ContainerType):
 
 class _StringSchema(_SchemaMeta):
     """Meta operations for strings types.
-    
     """
 
     def __mod__(cls, object):
@@ -723,10 +819,23 @@ class _ListSchema(_SchemaMeta):
     """Meta operations for list types."""
 
     def __getitem__(cls, object):
-        if isinstance(object, tuple):
+        if istype(cls, Tuple) and isinstance(object, (tuple, list)):
+            return cls + Items[list(object)]
+        elif isinstance(object, tuple):
             return cls + Items[AnyOf[object]]
         return cls + Items[object]
 
+    def __gt__(cls, object):
+        """Minumum array length"""
+        return cls + MinItems[object]
+
+    def __lt__(cls, object):
+        """Maximum array length"""
+        return cls + MaxItems[object]
+
+    __rgt__ = __rge__ = __le__ = __lt__
+    __rlt__ = __rle__ = __ge__ = __gt__
+
 
 class List(Trait, list, metaclass=_ListSchema):
     """List type
@@ -742,17 +851,74 @@ List
     
 Typed list
 
+    >>> assert List[Integer]([1, 2, 3])
     >>> assert isinstance([1], List[Integer])
     >>> assert not isinstance([1.1], List[Integer])
     
+    >>> List[Integer, String]._schema.toDict()
+    {'type': 'array', 'items': {'anyOf': [{'type': 'integer'}, {'type': 'string'}]}}
+
+    
 Tuple        
     
+    >>> assert List[Integer, String]([1, 'abc', 2])
     >>> assert isinstance([1, '1'], List[Integer, String])
     >>> assert not isinstance([1, {}], List[Integer, String])
     """
 
     _schema = dict(type="array")
 
+    def __new__(cls, *args, **kwargs):
+        if args and isinstance(args[0], tuple):
+            args = (list(args[0]) + list(args[1:]),)
+        return super().__new__(cls, *args, **kwargs)
+
+    def _verify_item(self, object, id=None):
+        items = self._schema.get("items", None)
+        if items:
+            if isinstance(items, dict):
+                if isinstance(id, slice):
+                    List[items].validate(object)
+                else:
+                    jsonschema.validate(
+                        object, items, format_checker=jsonschema.draft7_format_checker
+                    )
+            elif isinstance(items, list):
+                if isinstance(id, slice):
+                    # condition for negative slices
+                    Tuple[tuple(items[id])].validate(object)
+                elif isinstance(id, int):
+                    # condition for negative integers
+                    jsonschema.validate(
+                        object,
+                        items[id],
+                        format_checker=jsonschema.draft7_format_checker,
+                    )
+
+    def __setitem__(self, id, object):
+        self._verify_item(object, id)
+        super().__setitem__(id, object)
+
+    def append(self, object):
+        self._verify_item(object, len(self) + 1)
+        super().append(object)
+
+    def insert(self, id, object):
+        self._verify_item(object, id)
+        super().insert(id, object)
+
+    def extend(self, object):
+        id = slice(len(self), len(self) + 3)
+        self._verify_item(object, id)
+        super().extend(object)
+
+    def pop(self, index=-1, default=None):
+        value = super().pop(index, default)
+        try:
+            type(self).validate(self)
+        except ValidationError:
+            self.insert(index, value)
+
 
 class Unique(List, uniqueItems=True):
     """Unique list type
@@ -761,22 +927,14 @@ class Unique(List, uniqueItems=True):
 Examples
 --------
 
+    >>> assert Unique(list('abc'))
     >>> assert isinstance([1,2], Unique)
     >>> assert not isinstance([1,1], Unique)
     
     """
 
 
-class _TupleSchema(_SchemaMeta):
-    """Meta operations for list types."""
-
-    def __getitem__(cls, object):
-        if not isinstance(object, tuple):
-            object = (object,)
-        return cls + Items[object]
-
-
-class Tuple(Trait, metaclass=_TupleSchema):
+class Tuple(List):
     """tuple type
     
 Note
@@ -790,13 +948,15 @@ Examples
 --------
 
     >>> assert isinstance([1,2], Tuple)
-    >>> assert isinstance([1,'1'], Tuple[Integer, String])
-    >>> assert not isinstance([1,1], Tuple[Integer, String])
+    >>> assert Tuple[Integer, String]([1, 'abc'])
+    >>> Tuple[Integer, String]._schema.toDict()
+    {'type': 'array', 'items': [{'type': 'integer'}, {'type': 'string'}]}
+
+    >>> assert isinstance([1,'1'], Tuple[[Integer, String]])
+    >>> assert not isinstance([1,1], Tuple[[Integer, String]])
     
     """
 
-    _schema = dict(type="array")
-
 
 class UniqueItems(Trait, _NoInit, _NoTitle, metaclass=_ConstType):
     """Schema for unique items in a list."""
@@ -814,6 +974,14 @@ class AdditionalItems(Trait, _NoInit, _NoTitle, metaclass=_ContainerType):
     ...
 
 
+class MinItems(Trait, _NoInit, _NoTitle, metaclass=_ConstType):
+    """Minimum length of an array."""
+
+
+class MaxItems(Trait, _NoInit, _NoTitle, metaclass=_ConstType):
+    """Maximum length of an array."""
+
+
 # ## Combining Schema
 
 
@@ -842,6 +1010,7 @@ class AnyOf(Trait, _NoInit, metaclass=_ContainerType):
 Examples
 --------
 
+    >>> assert AnyOf[Integer, String]('abc')
     >>> assert isinstance(10, AnyOf[Integer, String])
     >>> assert not isinstance([], AnyOf[Integer, String])
     
@@ -856,6 +1025,7 @@ class AllOf(Trait, _NoInit, metaclass=_ContainerType):
 Examples
 --------
 
+    >>> assert AllOf[Float>0, Integer/3](9)
     >>> assert isinstance(9, AllOf[Float>0, Integer/3])
     >>> assert not isinstance(-9, AllOf[Float>0, Integer/3])
     
@@ -870,6 +1040,7 @@ class OneOf(Trait, _NoInit, metaclass=_ContainerType):
 Examples
 --------
 
+    >>> assert OneOf[Float>0, Integer/3](-9)
     >>> assert isinstance(-9, OneOf[Float>0, Integer/3])
     >>> assert not isinstance(9, OneOf[Float>0, Integer/3])
 
@@ -879,13 +1050,14 @@ Examples
 """
 
 
-class Enum(Trait, _NoInit, metaclass=_ConstType):
+class Enum(Trait, metaclass=_ConstType):
     """An enumerate type that is restricted to its inputs.
     
     
 Examples
 --------
 
+    >>> assert Enum['cat', 'dog']('cat')
     >>> assert isinstance('cat', Enum['cat', 'dog'])
     >>> assert not isinstance('🐢', Enum['cat', 'dog'])
 
@@ -918,16 +1090,20 @@ Regex.compile = re.compile
 del key
 
 
-class If(Trait, metaclass=_ContainerType):
-    ...
+class If(Trait, _NoInit, _NoTitle, metaclass=_ContainerType):
+    """if condition type
+    
+.. Conditions:
+    https://json-schema.org/understanding-json-schema/reference/conditionals.html
+    """
 
 
-class Then(Trait, metaclass=_ContainerType):
-    ...
+class Then(Trait, _NoInit, _NoTitle, metaclass=_ContainerType):
+    """then condition type"""
 
 
-class Else(Trait, metaclass=_ContainerType):
-    ...
+class Else(Trait, _NoInit, _NoTitle, metaclass=_ContainerType):
+    """else condition type"""
 
 
 # ## Configuration classes
@@ -938,6 +1114,8 @@ class Configurable(DataClass):
 
 
 if __name__ == "__main__":
+    from IPython import get_ipython
+
     if "__file__" in locals():
         if "covtest" in __import__("sys").argv:
             print(__import__("doctest").testmod(optionflags=8))
@@ -956,6 +1134,3 @@ if __name__ == "__main__":
         with IPython.utils.capture.capture_output():
             get_ipython().system("pyreverse wtypes -osvg -pwtypes")
         IPython.display.display(IPython.display.SVG("classes_wtypes.svg"))
-        with IPython.utils.capture.capture_output():
-            get_ipython().system("pyreverse wtypes -osvg -pwtypes -my -s1")
-        IPython.display.display(IPython.display.SVG("classes_wtypes.svg"))

Make non default Object annotations required objects.
diff --git a/test_wtypes.ipynb b/test_wtypes.ipynb
index 29684f6..9c3e258 100644
--- a/test_wtypes.ipynb
+++ b/test_wtypes.ipynb
@@ -7,7 +7,8 @@
    "outputs": [],
    "source": [
     "    from wtypes import *\n",
-    "    import pytest, anyconfig"
+    "    import pytest, anyconfig\n",
+    "    invalid = pytest.raises(ValidationError)"
    ]
   },
   {
@@ -16,18 +17,16 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "    def test_load_config():\n",
-    "        class BadProject(Bunch):\n",
-    "            tool: Dict\n",
-    "            __annotations__ = {'build-system': Integer}\n",
-    "\n",
-    "        with pytest.raises(ValidationError):\n",
-    "            BadProject().load('pyproject.toml')\n",
+    "    def test_update_attr():\n",
     "        \n",
-    "        class PyProject(Bunch):\n",
-    "            tool: Dict\n",
-    "            __annotations__ = {'build-system': Dict}\n",
-    "        PyProject().load('pyproject.toml')"
+    "        for cls in [Bunch]:\n",
+    "            class Class(cls): \n",
+    "                a: int = None\n",
+    "            d = Class()\n",
+    "            with invalid: d['a'] = 'abc'\n",
+    "            assert 'a' not in d\n",
+    "            d.a = 10\n",
+    "            assert d.a == 10"
    ]
   },
   {
@@ -40,9 +39,9 @@
     "        class Thing(Dict):\n",
     "            a: Integer\n",
     "\n",
-    "        assert Thing._schema.toDict() == {'type': 'object', 'properties': {'a': {'type': 'integer'}}}\n",
+    "        assert Thing._schema.toDict() == {'type': 'object', 'properties': {'a': {'type': 'integer'}}, 'required': ['a']}\n",
     "        assert Thing(a=1)\n",
-    "        with pytest.raises(ValidationError):\n",
+    "        with invalid:\n",
     "            Thing(a='abc')\n"
    ]
   },
@@ -56,10 +55,10 @@
     "        class Thing(Bunch):\n",
     "            a: Integer\n",
     "\n",
-    "        assert Thing._schema.toDict() == {'type': 'object', 'properties': {'a': {'type': 'integer'}}}\n",
+    "        assert Thing._schema.toDict() == {'type': 'object', 'properties': {'a': {'type': 'integer'}}, 'required': ['a']}\n",
     "        t = Thing(a=1)\n",
     "        assert t.a == 1\n",
-    "        with pytest.raises(ValidationError):\n",
+    "        with invalid:\n",
     "            Thing(a='abc')\n"
    ]
   },
@@ -68,15 +67,104 @@
    "execution_count": 5,
    "metadata": {},
    "outputs": [],
+   "source": [
+    "    def test_dict_mods():\n",
+    "        d = Dict[{'a': Integer, 'b': String}]({'a': 1})\n",
+    "\n",
+    "        with invalid: d[\"a\"] = 'abc'\n",
+    "        d['a'] = 8\n",
+    "        d['b'] = 'abc'\n",
+    "        with invalid: d['b'] = 10\n",
+    "        d['b'] = 'wxyz'\n",
+    "\n",
+    "        assert d == {'a': 8, 'b': 'wxyz'}\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "    def test_list_mods():\n",
+    "        l = List[Integer, Bool]()\n",
+    "        with invalid: l.append(1.2)\n",
+    "        l.append(1)\n",
+    "        l.extend([1,True])\n",
+    "        with invalid: l.extend([1, 'abc'])\n",
+    "        l.extend([False, 2, 4])\n",
+    "        assert l == [1, 1, True, False, 2, 4]\n",
+    "        with invalid: l.insert(1, 'abc')\n",
+    "        l.insert(1, 8)\n",
+    "        assert l == [1, 8, 1, True, False, 2, 4]\n",
+    "\n",
+    "        ml = List[Integer] + MinItems[1]\n",
+    "\n",
+    "        with invalid: ml()\n",
+    "        with invalid: ml(['abc'])\n",
+    "        assert ml([1])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "    def test_update_item():\n",
+    "        for cls in [Dict, Bunch]:\n",
+    "            d = cls[{'a': int}]()\n",
+    "            assert 'a' not in d\n",
+    "            d['a'] = 10\n",
+    "            assert d['a'] == 10"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "    def test_load_config():\n",
+    "        class BadProject(Bunch):\n",
+    "            tool: Dict\n",
+    "            __annotations__ = {'build-system': Integer}\n",
+    "\n",
+    "        with invalid:\n",
+    "            BadProject().load('pyproject.toml')\n",
+    "        \n",
+    "        class PyProject(Bunch):\n",
+    "            tool: Dict\n",
+    "            __annotations__ = {'build-system': Dict}\n",
+    "        PyProject.from_config_file('pyproject.toml')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "    def test_tuple():\n",
+    "        assert Tuple((1,2))\n",
+    "        assert Tuple([1,2])\n",
+    "        with invalid: Tuple[[Integer, String]]({})"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {},
+   "outputs": [],
    "source": [
     "    def test_dataclass():\n",
     "        class Thing(DataClass):\n",
     "            a: Integer\n",
     "\n",
     "        assert dataclasses.is_dataclass(Thing)\n",
-    "        assert Thing._schema.toDict() == {'type': 'object', 'properties': {'a': {'type': 'integer'}}}\n",
+    "        assert Thing._schema.toDict() == {'type': 'object', 'properties': {'a': {'type': 'integer'}}, 'required': ['a']}\n",
     "        assert Thing(a=1)\n",
-    "        with pytest.raises(ValidationError):\n",
+    "        with invalid:\n",
     "            Thing(a='abc')\n"
    ]
   }

pip install -e .
parse_log_pytest
requirements.txt
pytest pytest-cov importnb
apt-get update apt-get install -y gcc
3.8
requirements.txt
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
alabaster==0.7.13
anyconfig==0.14.0
astroid==3.2.4
attrs==25.3.0
babel==2.17.0
beautifulsoup4==4.13.3
bleach==6.1.0
certifi==2025.1.31
charset-normalizer==3.4.1
coverage==7.6.1
defusedxml==0.7.1
docutils==0.20.1
exceptiongroup==1.2.2
fastjsonschema==2.21.1
idna==3.10
imagesize==1.4.1
importlib_metadata==8.5.0
importlib_resources==6.4.5
importnb==2023.11.1
iniconfig==2.1.0
Jinja2==3.1.6
jsonschema==4.23.0
jsonschema-specifications==2023.12.1
jupyter_client==8.6.3
jupyter_core==5.7.2
jupyterlab_pygments==0.3.0
MarkupSafe==2.1.5
mistune==3.1.3
munch==4.0.0
nbclient==0.10.1
nbconvert==7.16.6
nbformat==5.10.4
nbsphinx==0.9.7
packaging==24.2
pandocfilters==1.5.1
pkgutil_resolve_name==1.3.10
platformdirs==4.3.6
pluggy==1.5.0
Pygments==2.19.1
pytest==8.3.5
pytest-cov==5.0.0
python-dateutil==2.9.0.post0
pytz==2025.2
PyYAML==6.0.2
pyzmq==26.3.0
referencing==0.35.1
requests==2.32.3
rpds-py==0.20.1
six==1.17.0
snowballstemmer==2.2.0
soupsieve==2.6
Sphinx==7.1.2
sphinx-autoapi==3.5.0
sphinxcontrib-applehelp==1.0.4
sphinxcontrib-devhelp==1.0.2
sphinxcontrib-htmlhelp==2.0.1
sphinxcontrib-jsmath==1.0.1
sphinxcontrib-qthelp==1.0.3
sphinxcontrib-serializinghtml==1.1.5
stdlib-list==0.10.0
tinycss2==1.2.1
toml==0.10.2
tomli==2.2.1
tornado==6.4.2
traitlets==5.14.3
typing_extensions==4.13.0
urllib3==2.2.3
webencodings==0.5.1
-e git+https://github.com/deathbeds/wtypes.git@8d102bec197a4fab1d993a0d5737cbe94a576788#egg=wtypes
zipp==3.20.2

name: wtypes
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - ca-certificates=2025.2.25=h06a4308_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.4.4=h6a678d5_1
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - ncurses=6.4=h6a678d5_0
  - openssl=3.0.16=h5eee18b_0
  - pip=24.2=py38h06a4308_0
  - python=3.8.20=he870216_0
  - readline=8.2=h5eee18b_0
  - setuptools=75.1.0=py38h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - wheel=0.44.0=py38h06a4308_0
  - xz=5.6.4=h5eee18b_1
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - alabaster==0.7.13
      - anyconfig==0.14.0
      - astroid==3.2.4
      - attrs==25.3.0
      - babel==2.17.0
      - beautifulsoup4==4.13.3
      - bleach==6.1.0
      - certifi==2025.1.31
      - charset-normalizer==3.4.1
      - coverage==7.6.1
      - defusedxml==0.7.1
      - docutils==0.20.1
      - exceptiongroup==1.2.2
      - fastjsonschema==2.21.1
      - idna==3.10
      - imagesize==1.4.1
      - importlib-metadata==8.5.0
      - importlib-resources==6.4.5
      - importnb==2023.11.1
      - iniconfig==2.1.0
      - jinja2==3.1.6
      - jsonschema==4.23.0
      - jsonschema-specifications==2023.12.1
      - jupyter-client==8.6.3
      - jupyter-core==5.7.2
      - jupyterlab-pygments==0.3.0
      - markupsafe==2.1.5
      - mistune==3.1.3
      - munch==4.0.0
      - nbclient==0.10.1
      - nbconvert==7.16.6
      - nbformat==5.10.4
      - nbsphinx==0.9.7
      - packaging==24.2
      - pandocfilters==1.5.1
      - pkgutil-resolve-name==1.3.10
      - platformdirs==4.3.6
      - pluggy==1.5.0
      - pygments==2.19.1
      - pytest==8.3.5
      - pytest-cov==5.0.0
      - python-dateutil==2.9.0.post0
      - pytz==2025.2
      - pyyaml==6.0.2
      - pyzmq==26.3.0
      - referencing==0.35.1
      - requests==2.32.3
      - rpds-py==0.20.1
      - six==1.17.0
      - snowballstemmer==2.2.0
      - soupsieve==2.6
      - sphinx==7.1.2
      - sphinx-autoapi==3.5.0
      - sphinxcontrib-applehelp==1.0.4
      - sphinxcontrib-devhelp==1.0.2
      - sphinxcontrib-htmlhelp==2.0.1
      - sphinxcontrib-jsmath==1.0.1
      - sphinxcontrib-qthelp==1.0.3
      - sphinxcontrib-serializinghtml==1.1.5
      - stdlib-list==0.10.0
      - tinycss2==1.2.1
      - toml==0.10.2
      - tomli==2.2.1
      - tornado==6.4.2
      - traitlets==5.14.3
      - typing-extensions==4.13.0
      - urllib3==2.2.3
      - webencodings==0.5.1
      - wtypes==0.0.1
      - zipp==3.20.2
prefix: /opt/conda/envs/wtypes

test_wtypes.ipynb::test_update_attr test_wtypes.ipynb::test_dict test_wtypes.ipynb::test_bunch test_wtypes.ipynb::test_dict_mods test_wtypes.ipynb::test_list_mods test_wtypes.ipynb::test_load_config test_wtypes.ipynb::test_dataclass
test_wtypes.ipynb::test_tuple
test_wtypes.ipynb::test_update_item
wtypes.ipynb wtypes.py
wtypes.ipynb wtypes.py