code: def get_identifier_input(self, identifier_data):
          
  
          identifier_input = []
  
          if isinstance(identifier_data, list) and len(identifier_data) > 0:
              # if list, convert each item in the list to json
              for address in identifier_data:
                  identifier_input.append(self._convert_to_identifier_json(address))
          else:
              identifier_input.append(self._convert_to_identifier_json(identifier_data))
  
          return identifier_input
docs: Convert the various formats of input identifier_data into
          the proper json format expected by the ApiClient fetch method,
          which is a list of dicts.