We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
[BUG]: Variable inject for list values in a serialised component missing kwargs
c = Component()

c.dict() -> {some keys: [ {}, { 'v': Variable_type }] }

due to 
```

def _replace_variables(x, db, **kwargs):
    from .document import Document

    if isinstance(x, dict):
        return {
            _replace_variables(k, db, **kwargs): _replace_variables(v, db, **kwargs)
            for k, v in x.items()
        }
    if isinstance(x, (list, tuple)):
        return [_replace_variables(v, db) for v in x] -> BUG (need **kwargs here)
    if isinstance(x, Variable):
        return x.set(db, **kwargs)
    if isinstance(x, Document):
        return x.set_variables(db, **kwargs)
    return x

```

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `superduperdb/base/serializable.py`
Content:
```
1 import dataclasses as dc
2 import importlib
3 import typing as t
4 from copy import deepcopy
5 
6 from superduperdb.base.leaf import Leaf
7 from superduperdb.misc.serialization import asdict
8 
9 
10 def _from_dict(r: t.Any, db: None = None) -> t.Any:
11     from superduperdb.base.document import Document
12     from superduperdb.components.datatype import File, LazyArtifact
13 
14     if isinstance(r, Document):
15         r = r.unpack(db, leaves_to_keep=(LazyArtifact, File))
16     if isinstance(r, (list, tuple)):
17         return [_from_dict(i, db=db) for i in r]
18     if not isinstance(r, dict):
19         return r
20     if '_content' in r:
21         r = r['_content']
22     if 'cls' in r and 'module' in r and 'dict' in r:
23         module = importlib.import_module(r['module'])
24         cls_ = getattr(module, r['cls'])
25         kwargs = _from_dict(r['dict'])
26         kwargs_init = {k: v for k, v in kwargs.items() if k not in cls_.set_post_init}
27         kwargs_post_init = {k: v for k, v in kwargs.items() if k in cls_.set_post_init}
28         instance = cls_(**kwargs_init)
29         for k, v in kwargs_post_init.items():
30             setattr(instance, k, v)
31         return instance
32     else:
33         return {k: _from_dict(v, db=db) for k, v in r.items()}
34 
35 
36 class VariableError(Exception):
37     ...
38 
39 
40 def _find_variables(r):
41     if isinstance(r, dict):
42         return sum([_find_variables(v) for v in r.values()], [])
43     elif isinstance(r, (list, tuple)):
44         return sum([_find_variables(v) for v in r], [])
45     elif isinstance(r, Variable):
46         return [r]
47     return []
48 
49 
50 def _replace_variables(x, db, **kwargs):
51     from .document import Document
52 
53     if isinstance(x, dict):
54         return {
55             _replace_variables(k, db, **kwargs): _replace_variables(v, db, **kwargs)
56             for k, v in x.items()
57         }
58     if isinstance(x, (list, tuple)):
59         return [_replace_variables(v, db) for v in x]
60     if isinstance(x, Variable):
61         return x.set(db, **kwargs)
62     if isinstance(x, Document):
63         return x.set_variables(db, **kwargs)
64     return x
65 
66 
67 @dc.dataclass
68 class Serializable(Leaf):
69     """
70     Base class for serializable objects. This class is used to serialize and
71     deserialize objects to and from JSON + Artifact instances.
72     """
73 
74     set_post_init: t.ClassVar[t.Sequence] = ()
75 
76     @property
77     def unique_id(self):
78         return str(hash(self.dict().encode()))
79 
80     @property
81     def variables(self) -> t.List['Variable']:
82         out = {}
83         r = self.encode(leaf_types_to_keep=(Variable,))
84         v = _find_variables(r)
85         for var in v:
86             out[var.value] = var
87         return sorted(list(out.values()), key=lambda x: x.value)
88 
89     def set_variables(self, db, **kwargs) -> 'Serializable':
90         """
91         Set free variables of self.
92 
93         :param db:
94         """
95         r = self.encode(leaf_types_to_keep=(Variable,))
96         r = _replace_variables(r, db, **kwargs)
97         return self.decode(r)
98 
99     def encode(
100         self,
101         leaf_types_to_keep: t.Sequence = (),
102     ):
103         r = dict(self.dict().encode(leaf_types_to_keep=leaf_types_to_keep))
104         r['leaf_type'] = 'serializable'
105         return {'_content': r}
106 
107     @classmethod
108     def decode(cls, r, db: t.Optional[t.Any] = None):
109         return _from_dict(r, db=db)
110 
111     def dict(self):
112         from superduperdb import Document
113 
114         return Document(asdict(self))
115 
116     def copy(self):
117         return deepcopy(self)
118 
119 
120 @dc.dataclass
121 class Variable(Serializable):
122     """
123     Mechanism for allowing "free variables" in a serializable object.
124     The idea is to allow a variable to be set at runtime, rather than
125     at object creation time.
126 
127     :param value: The name of the variable to be set at runtime.
128     :param setter_callback: A callback function that takes the value, datalayer
129                             and kwargs as input and returns the formatted
130                             variable.
131     """
132 
133     value: t.Any
134     setter_callback: dc.InitVar[t.Optional[t.Callable]] = None
135 
136     def __post_init__(self, setter_callback):
137         self.setter_callback = setter_callback
138 
139     def __repr__(self) -> str:
140         return '$' + str(self.value)
141 
142     def __hash__(self) -> int:
143         return hash(self.value)
144 
145     def set(self, db, **kwargs):
146         """
147         Get the intended value from the values of the global variables.
148 
149         >>> Variable('number').set(db, number=1.5, other='test')
150         1.5
151 
152         :param db: The datalayer instance.
153         :param kwargs: Variables to be used in the setter_callback
154                        or as formatting variables.
155         """
156         if self.setter_callback is not None:
157             try:
158                 return self.setter_callback(db, self.value, kwargs)
159             except Exception as e:
160                 raise VariableError(
161                     f'Could not set variable {self.value} '
162                     f'based on {self.setter_callback} and **kwargs: {kwargs}'
163                 ) from e
164         else:
165             assert isinstance(self.value, str)
166             return kwargs[self.value]
167
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/superduperdb/base/serializable.py b/superduperdb/base/serializable.py
--- a/superduperdb/base/serializable.py
+++ b/superduperdb/base/serializable.py
@@ -56,7 +56,7 @@
             for k, v in x.items()
         }
     if isinstance(x, (list, tuple)):
-        return [_replace_variables(v, db) for v in x]
+        return [_replace_variables(v, db, **kwargs) for v in x]
     if isinstance(x, Variable):
         return x.set(db, **kwargs)
     if isinstance(x, Document):

{"golden_diff": "diff --git a/superduperdb/base/serializable.py b/superduperdb/base/serializable.py\n--- a/superduperdb/base/serializable.py\n+++ b/superduperdb/base/serializable.py\n@@ -56,7 +56,7 @@\n             for k, v in x.items()\n         }\n     if isinstance(x, (list, tuple)):\n-        return [_replace_variables(v, db) for v in x]\n+        return [_replace_variables(v, db, **kwargs) for v in x]\n     if isinstance(x, Variable):\n         return x.set(db, **kwargs)\n     if isinstance(x, Document):\n", "issue": "[BUG]: Variable inject for list values in a serialised component missing kwargs\nc = Component()\r\n\r\nc.dict() -> {some keys: [ {}, { 'v': Variable_type }] }\r\n\r\ndue to \r\n```\r\n\r\ndef _replace_variables(x, db, **kwargs):\r\n    from .document import Document\r\n\r\n    if isinstance(x, dict):\r\n        return {\r\n            _replace_variables(k, db, **kwargs): _replace_variables(v, db, **kwargs)\r\n            for k, v in x.items()\r\n        }\r\n    if isinstance(x, (list, tuple)):\r\n        return [_replace_variables(v, db) for v in x] -> BUG (need **kwargs here)\r\n    if isinstance(x, Variable):\r\n        return x.set(db, **kwargs)\r\n    if isinstance(x, Document):\r\n        return x.set_variables(db, **kwargs)\r\n    return x\r\n\r\n```\n", "before_files": [{"content": "import dataclasses as dc\nimport importlib\nimport typing as t\nfrom copy import deepcopy\n\nfrom superduperdb.base.leaf import Leaf\nfrom superduperdb.misc.serialization import asdict\n\n\ndef _from_dict(r: t.Any, db: None = None) -> t.Any:\n    from superduperdb.base.document import Document\n    from superduperdb.components.datatype import File, LazyArtifact\n\n    if isinstance(r, Document):\n        r = r.unpack(db, leaves_to_keep=(LazyArtifact, File))\n    if isinstance(r, (list, tuple)):\n        return [_from_dict(i, db=db) for i in r]\n    if not isinstance(r, dict):\n        return r\n    if '_content' in r:\n        r = r['_content']\n    if 'cls' in r and 'module' in r and 'dict' in r:\n        module = importlib.import_module(r['module'])\n        cls_ = getattr(module, r['cls'])\n        kwargs = _from_dict(r['dict'])\n        kwargs_init = {k: v for k, v in kwargs.items() if k not in cls_.set_post_init}\n        kwargs_post_init = {k: v for k, v in kwargs.items() if k in cls_.set_post_init}\n        instance = cls_(**kwargs_init)\n        for k, v in kwargs_post_init.items():\n            setattr(instance, k, v)\n        return instance\n    else:\n        return {k: _from_dict(v, db=db) for k, v in r.items()}\n\n\nclass VariableError(Exception):\n    ...\n\n\ndef _find_variables(r):\n    if isinstance(r, dict):\n        return sum([_find_variables(v) for v in r.values()], [])\n    elif isinstance(r, (list, tuple)):\n        return sum([_find_variables(v) for v in r], [])\n    elif isinstance(r, Variable):\n        return [r]\n    return []\n\n\ndef _replace_variables(x, db, **kwargs):\n    from .document import Document\n\n    if isinstance(x, dict):\n        return {\n            _replace_variables(k, db, **kwargs): _replace_variables(v, db, **kwargs)\n            for k, v in x.items()\n        }\n    if isinstance(x, (list, tuple)):\n        return [_replace_variables(v, db) for v in x]\n    if isinstance(x, Variable):\n        return x.set(db, **kwargs)\n    if isinstance(x, Document):\n        return x.set_variables(db, **kwargs)\n    return x\n\n\n@dc.dataclass\nclass Serializable(Leaf):\n    \"\"\"\n    Base class for serializable objects. This class is used to serialize and\n    deserialize objects to and from JSON + Artifact instances.\n    \"\"\"\n\n    set_post_init: t.ClassVar[t.Sequence] = ()\n\n    @property\n    def unique_id(self):\n        return str(hash(self.dict().encode()))\n\n    @property\n    def variables(self) -> t.List['Variable']:\n        out = {}\n        r = self.encode(leaf_types_to_keep=(Variable,))\n        v = _find_variables(r)\n        for var in v:\n            out[var.value] = var\n        return sorted(list(out.values()), key=lambda x: x.value)\n\n    def set_variables(self, db, **kwargs) -> 'Serializable':\n        \"\"\"\n        Set free variables of self.\n\n        :param db:\n        \"\"\"\n        r = self.encode(leaf_types_to_keep=(Variable,))\n        r = _replace_variables(r, db, **kwargs)\n        return self.decode(r)\n\n    def encode(\n        self,\n        leaf_types_to_keep: t.Sequence = (),\n    ):\n        r = dict(self.dict().encode(leaf_types_to_keep=leaf_types_to_keep))\n        r['leaf_type'] = 'serializable'\n        return {'_content': r}\n\n    @classmethod\n    def decode(cls, r, db: t.Optional[t.Any] = None):\n        return _from_dict(r, db=db)\n\n    def dict(self):\n        from superduperdb import Document\n\n        return Document(asdict(self))\n\n    def copy(self):\n        return deepcopy(self)\n\n\n@dc.dataclass\nclass Variable(Serializable):\n    \"\"\"\n    Mechanism for allowing \"free variables\" in a serializable object.\n    The idea is to allow a variable to be set at runtime, rather than\n    at object creation time.\n\n    :param value: The name of the variable to be set at runtime.\n    :param setter_callback: A callback function that takes the value, datalayer\n                            and kwargs as input and returns the formatted\n                            variable.\n    \"\"\"\n\n    value: t.Any\n    setter_callback: dc.InitVar[t.Optional[t.Callable]] = None\n\n    def __post_init__(self, setter_callback):\n        self.setter_callback = setter_callback\n\n    def __repr__(self) -> str:\n        return '$' + str(self.value)\n\n    def __hash__(self) -> int:\n        return hash(self.value)\n\n    def set(self, db, **kwargs):\n        \"\"\"\n        Get the intended value from the values of the global variables.\n\n        >>> Variable('number').set(db, number=1.5, other='test')\n        1.5\n\n        :param db: The datalayer instance.\n        :param kwargs: Variables to be used in the setter_callback\n                       or as formatting variables.\n        \"\"\"\n        if self.setter_callback is not None:\n            try:\n                return self.setter_callback(db, self.value, kwargs)\n            except Exception as e:\n                raise VariableError(\n                    f'Could not set variable {self.value} '\n                    f'based on {self.setter_callback} and **kwargs: {kwargs}'\n                ) from e\n        else:\n            assert isinstance(self.value, str)\n            return kwargs[self.value]\n", "path": "superduperdb/base/serializable.py"}], "after_files": [{"content": "import dataclasses as dc\nimport importlib\nimport typing as t\nfrom copy import deepcopy\n\nfrom superduperdb.base.leaf import Leaf\nfrom superduperdb.misc.serialization import asdict\n\n\ndef _from_dict(r: t.Any, db: None = None) -> t.Any:\n    from superduperdb.base.document import Document\n    from superduperdb.components.datatype import File, LazyArtifact\n\n    if isinstance(r, Document):\n        r = r.unpack(db, leaves_to_keep=(LazyArtifact, File))\n    if isinstance(r, (list, tuple)):\n        return [_from_dict(i, db=db) for i in r]\n    if not isinstance(r, dict):\n        return r\n    if '_content' in r:\n        r = r['_content']\n    if 'cls' in r and 'module' in r and 'dict' in r:\n        module = importlib.import_module(r['module'])\n        cls_ = getattr(module, r['cls'])\n        kwargs = _from_dict(r['dict'])\n        kwargs_init = {k: v for k, v in kwargs.items() if k not in cls_.set_post_init}\n        kwargs_post_init = {k: v for k, v in kwargs.items() if k in cls_.set_post_init}\n        instance = cls_(**kwargs_init)\n        for k, v in kwargs_post_init.items():\n            setattr(instance, k, v)\n        return instance\n    else:\n        return {k: _from_dict(v, db=db) for k, v in r.items()}\n\n\nclass VariableError(Exception):\n    ...\n\n\ndef _find_variables(r):\n    if isinstance(r, dict):\n        return sum([_find_variables(v) for v in r.values()], [])\n    elif isinstance(r, (list, tuple)):\n        return sum([_find_variables(v) for v in r], [])\n    elif isinstance(r, Variable):\n        return [r]\n    return []\n\n\ndef _replace_variables(x, db, **kwargs):\n    from .document import Document\n\n    if isinstance(x, dict):\n        return {\n            _replace_variables(k, db, **kwargs): _replace_variables(v, db, **kwargs)\n            for k, v in x.items()\n        }\n    if isinstance(x, (list, tuple)):\n        return [_replace_variables(v, db, **kwargs) for v in x]\n    if isinstance(x, Variable):\n        return x.set(db, **kwargs)\n    if isinstance(x, Document):\n        return x.set_variables(db, **kwargs)\n    return x\n\n\n@dc.dataclass\nclass Serializable(Leaf):\n    \"\"\"\n    Base class for serializable objects. This class is used to serialize and\n    deserialize objects to and from JSON + Artifact instances.\n    \"\"\"\n\n    set_post_init: t.ClassVar[t.Sequence] = ()\n\n    @property\n    def unique_id(self):\n        return str(hash(self.dict().encode()))\n\n    @property\n    def variables(self) -> t.List['Variable']:\n        out = {}\n        r = self.encode(leaf_types_to_keep=(Variable,))\n        v = _find_variables(r)\n        for var in v:\n            out[var.value] = var\n        return sorted(list(out.values()), key=lambda x: x.value)\n\n    def set_variables(self, db, **kwargs) -> 'Serializable':\n        \"\"\"\n        Set free variables of self.\n\n        :param db:\n        \"\"\"\n        r = self.encode(leaf_types_to_keep=(Variable,))\n        r = _replace_variables(r, db, **kwargs)\n        return self.decode(r)\n\n    def encode(\n        self,\n        leaf_types_to_keep: t.Sequence = (),\n    ):\n        r = dict(self.dict().encode(leaf_types_to_keep=leaf_types_to_keep))\n        r['leaf_type'] = 'serializable'\n        return {'_content': r}\n\n    @classmethod\n    def decode(cls, r, db: t.Optional[t.Any] = None):\n        return _from_dict(r, db=db)\n\n    def dict(self):\n        from superduperdb import Document\n\n        return Document(asdict(self))\n\n    def copy(self):\n        return deepcopy(self)\n\n\n@dc.dataclass\nclass Variable(Serializable):\n    \"\"\"\n    Mechanism for allowing \"free variables\" in a serializable object.\n    The idea is to allow a variable to be set at runtime, rather than\n    at object creation time.\n\n    :param value: The name of the variable to be set at runtime.\n    :param setter_callback: A callback function that takes the value, datalayer\n                            and kwargs as input and returns the formatted\n                            variable.\n    \"\"\"\n\n    value: t.Any\n    setter_callback: dc.InitVar[t.Optional[t.Callable]] = None\n\n    def __post_init__(self, setter_callback):\n        self.setter_callback = setter_callback\n\n    def __repr__(self) -> str:\n        return '$' + str(self.value)\n\n    def __hash__(self) -> int:\n        return hash(self.value)\n\n    def set(self, db, **kwargs):\n        \"\"\"\n        Get the intended value from the values of the global variables.\n\n        >>> Variable('number').set(db, number=1.5, other='test')\n        1.5\n\n        :param db: The datalayer instance.\n        :param kwargs: Variables to be used in the setter_callback\n                       or as formatting variables.\n        \"\"\"\n        if self.setter_callback is not None:\n            try:\n                return self.setter_callback(db, self.value, kwargs)\n            except Exception as e:\n                raise VariableError(\n                    f'Could not set variable {self.value} '\n                    f'based on {self.setter_callback} and **kwargs: {kwargs}'\n                ) from e\n        else:\n            assert isinstance(self.value, str)\n            return kwargs[self.value]\n", "path": "superduperdb/base/serializable.py"}]}