The usual trick is to create a class extension inside the .m file and put your private/protected property there instead of in the header.
//Person.m
@interface Person()
@property float height
@end
this hides the ‘height’ property
Another trick is if you want to create a readonly property is to declare it in the header
as
@property(readonly) int myproperty
but in the class extension as readwrite which allows your .m to modify the value using the getter/setter
@property(readwrite) int myproperty