def _build_list_item(self, item_value, id_=None):
return {<EOL>'<STR_LIT>': self._type_map[self.input_type]['<STR_LIT>'],<EOL>'<STR_LIT:id>': id_ or SID.generate(),<EOL>'<STR_LIT:value>': item_value<EOL>}<EOL>
Return a dict with ID and $type for API representation of value

        Uses id_ param if provided, defaults to new random ID