def create_thread(exploration_id, state_name, original_author_id, subject, text):
 _create_models_for_thread_and_first_message(exploration_id, state_name, original_author_id, subject, text, False)

def create_thread ( exploration_id , state_name , original_author_id , subject , text ) : _create_models_for_thread_and_first_message ( exploration_id , state_name , original_author_id , subject , text , False )
creates a thread and its first message .