class_docstr: Base class for all models.
class_docstr_tok: ["Base","class","for","all","models","."]
code: def __init__(self, **kwargs):
      self._cache_key = _CacheKey()
      self.populate(**kwargs)
  
imports: import six
  from .None import parsers, errors
  from .fields import BaseField
  from .errors import ValidationError
label_desc: Use image node_id 1 to create a new Base object from inherited base classes:  with example: obj = Base()