@staticmethod
def p_axis_pts_optional(p):
    """axis_pts_optional : display_identifier
                             | read_only
                             | format
                             | deposit
                             | byte_order
                             | function_list
                             | ref_memory_segment
                             | guard_rails
                             | extended_limits
                             | annotation
                             | if_data_axis_pts
                             | calibration_access
                             | ecu_address_extension"""
    p[0] = p.slice[1].type, p[1]
