Method MasterObject()->describe_module()

Method describe_module: string describe_module(object|program mod, array(object)|void ret_obj)
Description: Describe the path to the module mod .
Parameter mod: If mod is a program, attempt to describe the path to a clone of mod .
Parameter ret_obj: If an instance of mod is found, it will be returned by changing element 0 of ret_obj .
Returns: The a description of the path.
Note: The returned description will end with a proper indexing method currently either "." or "->".