Does it exist and what is called if there is a generic method in Perl6?

Question

Perl

Somewhere I saw information that in Perl6 you can describe a method that will be called if the object does not have such a method.
That is, if I call $a.foo, but the class that $a belongs to does not have a foo method, then this method will be called.
Was it like that or did it seem to me?