How to use the gql.utils_schema.load_schema function in gql

def run(config_filename):
    if not isfile(config_filename):
        click.echo(f'Could not find configuration file {config_filename}')

    config = Config.load(config_filename)
    schema = load_schema(config.schema)

    filenames = glob.glob(config.documents, recursive=True)

    query_parser = QueryParser(schema)
    query_renderer = DataclassesRenderer(schema, config)

    for filename in filenames:
        process_file(filename, query_parser, query_renderer)

def get_schema():
    if 'SCHEMA' not in globals():
        config = get_config()
        globals()['SCHEMA'] = load_schema(config.schema)

    return globals()['SCHEMA']

if event.is_directory:
                return

            if event.event_type in {EVENT_TYPE_CREATED, EVENT_TYPE_MODIFIED}:
                filenames = [os.path.abspath(fn) for fn in glob.iglob(config.documents, recursive=True)]
                if event.src_path not in filenames:
                    return

                # Take any action here when a file is first created.
                process_file(event.src_path, self.parser, self.renderer)

    if not isfile(config_filename):
        click.echo(f'Could not find configuration file {config_filename}')

    config = Config.load(config_filename)
    schema = load_schema(config.schema)

    click.secho(f'Watching {config.documents}', fg='cyan')
    click.secho('Ready for changes...', fg='cyan')

    observer = Observer()
    observer.schedule(Handler(config, schema), os.path.abspath('./'), recursive=True)
    observer.start()
    try:
        while True:
            time.sleep(5)
    except:
        observer.stop()
        print('Error')

    observer.join()