If called on an object, calls C<DOES> on it and returns the result, otherwise
returns nothing.
-=head2 $_call_if_method
+=head2 $_call_if_object
- $maybe_an_object->$_call_if_method(method_name => @args);
+ $maybe_an_object->$_call_if_object(method_name => @args);
If called on an object, calls C<method_name> on it and returns the result,
otherwise returns nothing.