todo code implement method issu mechan integr tfmorri need review updat author decki endi yayan politechn bandung depart method chang text messag param owner param paramet updat argument paramet object owner object paramet code review owner object act model facad action owner model facad action act model facad oper act object oper model facad oper act model direct kind paramet equal model facad kind paramet updat chang model subsystem tfm collect colpar model facad paramet oper collect colarg model facad actual argument act colpar size colarg size iter iter colarg iter iter object arg iter iter model common behavior helper remov actual argument act arg object argument model common behavior factori creat argument model common behavior helper set valu argument model data type factori creat express model facad paramet model core helper set argument model facad paramet model common behavior helper add actual argument act argument model pump remov model event listen paramet model pump add model event listen paramet 