I'm trying to add a method to the containers.Map class, for example
function sayHello(obj)
    disp('Hello!')
end
And I want to be able to do:
map = containers.Map('Foo', 'Bar');
map.sayHello
I've added sayHello.m to /my/path/+containers/@Map, but methods containers.Map and which -all sayHello both don't find my method.
What am I doing wrong? Is it not possible to add methods to this class?
Thanks