def METHOD_NAME(
    response_dict: Dict,
    parsed_response: Dict,
    operation_model: OperationModel,
    parser: ResponseParser,
):
    """
    This function adds additional error shape members (other than message, code, and type) to an already parsed error
    response dict.
    Port of botocore's Endpoint#_add_modeled_error_fields.
    """
    error_code = parsed_response.get("Error", {}).get("Code")
    if error_code is None:
        return
    service_model = operation_model.service_model
    error_shape = service_model.shape_for_error_code(error_code)
    if error_shape is None:
        return
    modeled_parse = parser.parse(response_dict, error_shape)
    parsed_response.update(modeled_parse)