[ CCode ( get_value_function = "g_value_get_param" , param_spec_function = "g_param_spec_param" , ref_function = "g_param_spec_ref" , set_value_function = "g_value_set_param" , take_value_function = "g_value_take_param" , type_id = "G_TYPE_PARAM" , unref_function = "g_param_spec_unref" ) ]
public class ParamSpec