code: def to_dict(self, include_meta=False):
          
          result = super(JackalDoc, self).to_dict(include_meta=include_meta)
          if include_meta:
              source = result.pop('_source')
              return {**result, **source}
          else:
              return result
docs: Returns the result as a dictionary, provide the include_meta flag to als show information like index and doctype.