text: 
  from operator import attrgetter
  import pyangbind.lib.xpathhelper as xpathhelper
  from pyangbind.lib.yangtypes import RestrictedPrecisionDecimalType, RestrictedClassType, TypedListType
  from pyangbind.lib.yangtypes import YANGBool, YANGListType, YANGDynClass, ReferenceType
  from pyangbind.lib.base import PybindBase
  from decimal import Decimal
  from bitarray import bitarray
  import __builtin__
  class key_string(PybindBase):
    """
    This class was auto-generated by the PythonClass plugin for PYANG
    from YANG module brocade-keychain - based on the path /keychain/key/key-string. Each member element of
    the container is represented as a class variable - with a specific
    YANG type.
    """
    __slots__ = ('_pybind_generated_by', '_path_helper', '_yang_name', '_rest_name', '_extmethods', '__key_string_text','__encryption_level',)
  
    _yang_name = 'key-string'
    _rest_name = 'key-string'
  
    _pybind_generated_by = 'container'
  
    def __init__(self, *args, **kwargs):
  
      path_helper_ = kwargs.pop("path_helper", None)
      if path_helper_ is False:
        self._path_helper = False
      elif path_helper_ is not None and isinstance(path_helper_, xpathhelper.YANGPathHelper):
        self._path_helper = path_helper_
      elif hasattr(self, "_parent"):
        path_helper_ = getattr(self._parent, "_path_helper", False)
        self._path_helper = path_helper_
      else:
        self._path_helper = False
  
      extmethods = kwargs.pop("extmethods", None)
      if extmethods is False:
        self._extmethods = False
      elif extmethods is not None and isinstance(extmethods, dict):
        self._extmethods = extmethods
      elif hasattr(self, "_parent"):
        extmethods = getattr(self._parent, "_extmethods", None)
        self._extmethods = extmethods
      else:
        self._extmethods = False
      self.__encryption_level = YANGDynClass(base=RestrictedClassType(base_type=RestrictedClassType(base_type=long, restriction_dict={'range': ['0..4294967295']}, int_size=32), restriction_dict={'range': [u'0..7']}), is_leaf=True, yang_name="encryption-level", rest_name="encryption-level", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'enter value for level of encryption', u'cli-full-command': None}}, namespace='urn:brocade.com:mgmt:brocade-keychain', defining_module='brocade-keychain', yang_type='uint32', is_config=True)
      self.__key_string_text = YANGDynClass(base=RestrictedClassType(base_type=unicode, restriction_dict={'length': [u'1..128']}), is_leaf=True, yang_name="key-string-text", rest_name="key-string-text", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'enter key-string (CHAR[1-128])', u'cli-drop-node-name': None, u'cli-incomplete-command': None}}, namespace='urn:brocade.com:mgmt:brocade-keychain', defining_module='brocade-keychain', yang_type='string', is_config=True)
  
      load = kwargs.pop("load", None)
      if args:
        if len(args) > 1:
          raise TypeError("cannot create a YANG container with >1 argument")
        all_attr = True
        for e in self._pyangbind_elements:
          if not hasattr(args[0], e):
            all_attr = False
            break
        if not all_attr:
          raise ValueError("Supplied object did not have the correct attributes")
        for e in self._pyangbind_elements:
          nobj = getattr(args[0], e)
          if nobj._changed() is False:
            continue
          setmethod = getattr(self, "_set_%s" % e)
          if load is None:
            setmethod(getattr(args[0], e))
          else:
            setmethod(getattr(args[0], e), load=load)
  
    def _path(self):
      if hasattr(self, "_parent"):
        return self._parent._path()+[self._yang_name]
      else:
        return [u'keychain', u'key', u'key-string']
  
    def _rest_path(self):
      if hasattr(self, "_parent"):
        if self._rest_name:
          return self._parent._rest_path()+[self._rest_name]
        else:
          return self._parent._rest_path()
      else:
        return [u'keychain', u'key', u'key-string']
  
    def _get_key_string_text(self):
      """
      Getter method for key_string_text, mapped from YANG variable /keychain/key/key_string/key_string_text (string)
      """
      return self.__key_string_text
        
    def _set_key_string_text(self, v, load=False):
      """
      Setter method for key_string_text, mapped from YANG variable /keychain/key/key_string/key_string_text (string)
      If this variable is read-only (config: false) in the
      source YANG file, then _set_key_string_text is considered as a private
      method. Backends looking to populate this variable should
      do so via calling thisObj._set_key_string_text() directly.
      """
      if hasattr(v, "_utype"):
        v = v._utype(v)
      try:
        t = YANGDynClass(v,base=RestrictedClassType(base_type=unicode, restriction_dict={'length': [u'1..128']}), is_leaf=True, yang_name="key-string-text", rest_name="key-string-text", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'enter key-string (CHAR[1-128])', u'cli-drop-node-name': None, u'cli-incomplete-command': None}}, namespace='urn:brocade.com:mgmt:brocade-keychain', defining_module='brocade-keychain', yang_type='string', is_config=True)
      except (TypeError, ValueError):
        raise ValueError({
            'error-string': """key_string_text must be of a type compatible with string""",
            'defined-type': "string",
            'generated-type': """YANGDynClass(base=RestrictedClassType(base_type=unicode, restriction_dict={'length': [u'1..128']}), is_leaf=True, yang_name="key-string-text", rest_name="key-string-text", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'enter key-string (CHAR[1-128])', u'cli-drop-node-name': None, u'cli-incomplete-command': None}}, namespace='urn:brocade.com:mgmt:brocade-keychain', defining_module='brocade-keychain', yang_type='string', is_config=True)""",
          })
  
      self.__key_string_text = t
      if hasattr(self, '_set'):
        self._set()
  
    def _unset_key_string_text(self):
      self.__key_string_text = YANGDynClass(base=RestrictedClassType(base_type=unicode, restriction_dict={'length': [u'1..128']}), is_leaf=True, yang_name="key-string-text", rest_name="key-string-text", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'enter key-string (CHAR[1-128])', u'cli-drop-node-name': None, u'cli-incomplete-command': None}}, namespace='urn:brocade.com:mgmt:brocade-keychain', defining_module='brocade-keychain', yang_type='string', is_config=True)
  
  
    def _get_encryption_level(self):
      """
      Getter method for encryption_level, mapped from YANG variable /keychain/key/key_string/encryption_level (uint32)
      """
      return self.__encryption_level
        
    def _set_encryption_level(self, v, load=False):
      """
      Setter method for encryption_level, mapped from YANG variable /keychain/key/key_string/encryption_level (uint32)
      If this variable is read-only (config: false) in the
      source YANG file, then _set_encryption_level is considered as a private
      method. Backends looking to populate this variable should
      do so via calling thisObj._set_encryption_level() directly.
      """
      if hasattr(v, "_utype"):
        v = v._utype(v)
      try:
        t = YANGDynClass(v,base=RestrictedClassType(base_type=RestrictedClassType(base_type=long, restriction_dict={'range': ['0..4294967295']}, int_size=32), restriction_dict={'range': [u'0..7']}), is_leaf=True, yang_name="encryption-level", rest_name="encryption-level", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'enter value for level of encryption', u'cli-full-command': None}}, namespace='urn:brocade.com:mgmt:brocade-keychain', defining_module='brocade-keychain', yang_type='uint32', is_config=True)
      except (TypeError, ValueError):
        raise ValueError({
            'error-string': """encryption_level must be of a type compatible with uint32""",
            'defined-type': "uint32",
            'generated-type': """YANGDynClass(base=RestrictedClassType(base_type=RestrictedClassType(base_type=long, restriction_dict={'range': ['0..4294967295']}, int_size=32), restriction_dict={'range': [u'0..7']}), is_leaf=True, yang_name="encryption-level", rest_name="encryption-level", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'enter value for level of encryption', u'cli-full-command': None}}, namespace='urn:brocade.com:mgmt:brocade-keychain', defining_module='brocade-keychain', yang_type='uint32', is_config=True)""",
          })
  
      self.__encryption_level = t
      if hasattr(self, '_set'):
        self._set()
  
    def _unset_encryption_level(self):
      self.__encryption_level = YANGDynClass(base=RestrictedClassType(base_type=RestrictedClassType(base_type=long, restriction_dict={'range': ['0..4294967295']}, int_size=32), restriction_dict={'range': [u'0..7']}), is_leaf=True, yang_name="encryption-level", rest_name="encryption-level", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'enter value for level of encryption', u'cli-full-command': None}}, namespace='urn:brocade.com:mgmt:brocade-keychain', defining_module='brocade-keychain', yang_type='uint32', is_config=True)
  
    key_string_text = __builtin__.property(_get_key_string_text, _set_key_string_text)
    encryption_level = __builtin__.property(_get_encryption_level, _set_encryption_level)
  
  
    _pyangbind_elements = {'key_string_text': key_string_text, 'encryption_level': encryption_level, }
  
  
  