'Get the descriptor of the library from the XML import modulestore.'

def get_courselike(self, courselike_key, runtime, dest_id):

    source_library = self.xml_module_store.get_library(courselike_key)
    (library, library_data_path) = self.import_courselike(runtime, courselike_key, dest_id, source_library)
    return (source_library, library, library_data_path)
