docs: def _from_dict(cls, _dict):
          """Initialize a Log object from a json dictionary."""
          args = {}
          if 'request' in _dict:
              args['request'] = MessageRequest._from_dict(_dict.get('request'))
          else:
              raise ValueError(
                  'Required property \'request\' not present in Log JSON')
          if 'response' in _dict:
              args['response'] = MessageResponse._from_dict(_dict.get('response'))
          else:
              raise ValueError(
                  'Required property \'response\' not present in Log JSON')
          if 'log_id' in _dict:
              args['log_id'] = _dict.get('log_id')
          else:
              raise ValueError(
                  'Required property \'log_id\' not present in Log JSON')
          if 'request_timestamp' in _dict:
              args['request_timestamp'] = _dict.get('request_timestamp')
          else:
              raise ValueError(
                  'Required property \'request_timestamp\' not present in Log JSON'
              )
          if 'response_timestamp' in _dict:
              args['response_timestamp'] = _dict.get('response_timestamp')
          else:
              raise ValueError(
                  'Required property \'response_timestamp\' not present in Log JSON'
              )
          if 'workspace_id' in _dict:
              args['workspace_id'] = _dict.get('workspace_id')
          else:
              raise ValueError(
                  'Required property \'workspace_id\' not present in Log JSON')
          if 'language' in _dict:
              args['language'] = _dict.get('language')
          else:
              raise ValueError(
                  'Required property \'language\' not present in Log JSON')
          return cls(**args)