code: def _from_dict(cls, _dict):
          
          args = {}
          if 'models' in _dict:
              args['models'] = [
                  SpeechModel._from_dict(x) for x in (_dict.get('models'))
              ]
          else:
              raise ValueError(
                  'Required property \'models\' not present in SpeechModels JSON')
          return cls(**args)
docs: Initialize a SpeechModels object from a json dictionary.