def METHOD_NAME(empty_data_folder):
    """This assumes a bitcoin-testnet-node is running on loalhost"""
    specter = Specter(data_folder=empty_data_folder)
    user_manager = UserManager(specter=specter)
    password = "somepassword"
    user_id = "someuser"
    username = "someuser"
    config = {}
    user = user_manager.create_user(
        user_id=user_id, username=username, plaintext_password=password, config=config
    )
    yield specter