def _add_item_manager(self, key, item_class, **paths):
updated_paths = {}<EOL>for path_type, path_value in paths.items():<EOL><INDENT>updated_paths[path_type] = path_value.format(**self.__dict__)<EOL><DEDENT>manager = Redmine_Items_Manager(self._redmine, item_class,<EOL>**updated_paths)<EOL>self.__dict__[key] = manager<EOL>
Add an item manager to this object.