code: def _check_filter_specific_tag(self, specific_tag: list):
          
          if isinstance(specific_tag, list):
              if len(specific_tag) > 0:
                  specific_tag = ",".join(specific_tag)
              else:
                  specific_tag = ""
          else:
              raise TypeError("'specific_tag' expects a list")
          return specific_tag
docs: Check if specific_tag parameter is valid.
  
          :param list specific_tag: list of specific tag to check