function that returns an authenticated box client

box_authenticated_client.py

def get_authenticated_client(configPath):
    """Get an authenticated Box client for a JWT service account

    Arguments:
        configPath {str} -- Path to the JSON config file for your Box JWT app

    Returns:
        Client -- A Box client for the JWT service account

    Raises:
        ValueError -- if the configPath is empty or cannot be found.
    """
    if os.path.isfile(configPath) == False:
        raise ValueError(
            f"configPath must be a path to the JSON config file for your Box JWT app"
        )
    auth = JWTAuth.from_settings_file(configPath)
    print("Authenticating...")
    auth.authenticate_instance()
    return Client(auth)