code: def from_dict_hook(data):
      
      type_ = data.get('_type', None)
      if type_ is not None:
          klass = _import_type(type_)
  
          msg = '_type must point to a class with `from_dict` static method'
          assert hasattr(klass, 'from_dict'), msg
  
          return klass.from_dict(data)
      return data
docs: Decode internal objects encoded using `to_dict_hook`.
  
      This automatically imports the class defined in the `_type` metadata field,
      and calls the `from_dict` method hook to instantiate an object of that
      class.
  
      Note:
          Because this function will do automatic module loading it's really
          important to only use this with sanitized or trusted input, otherwise
          arbitrary modules can be imported and potentially arbitrary code can be
          executed.