def _get_motor_parameters(json_file):
    """Returns a dictionary with joints as keys, and a description (dict) of each joint as value"""
    with open(json_file) as motor_fd:
        global_config = json.load(motor_fd)

    motors = global_config["motors"]
    # Returned dict
    motor_config = {}

    # Add motor to the config
    for motor in motors:
        motor_config[motor] = motors[motor]

    return motor_config
Returns a dictionary with joints as keys, and a description (dict) of each joint as value