code: def has_operator_manifest(self):
          
          dockerfile = df_parser(self.workflow.builder.df_path, workflow=self.workflow)
          labels = Labels(dockerfile.labels)
          try:
              _, operator_label = labels.get_name_and_value(Labels.LABEL_TYPE_OPERATOR_MANIFESTS)
          except KeyError:
              operator_label = 'false'
          return operator_label.lower() == 'true'
docs: Check if Dockerfile sets the operator manifest label
  
          :return: bool