Creates a copy of this map which includes all non-abstract configurations in their extended form.

        :return: Copy of this map.
        :rtype: ContainerMap

def get_extended_map(self):
        """
        Creates a copy of this map which includes all non-abstract configurations in their extended form.

        :return: Copy of this map.
        :rtype: ContainerMap
        """
        map_copy = self.__class__(self.name)
        map_copy.update_from_obj(self, copy=True, update_containers=False)
        for c_name, c_config in self:
            map_copy._containers[c_name] = self.get_extended(c_config)
        map_copy._extended = True
        return map_copy