docs: def try_encode(field_encoders, entity_dict):
          """
          Inner encoding and try return string from entity dictionary
          :param field_encoders:
          :param entity_dict:
          :return:
          """
          result = ''
          for field_encoder in field_encoders:
              try:
                  result += field_encoder.encode(entity_dict)
              except KeyError as e:
                  return False
          return result