def is_training_name(name):
    """
    **Guess** if this variable is only used in training.
    Only used internally to avoid too many logging. Do not use it.
    """
    # TODO: maybe simply check against TRAINABLE_VARIABLES and MODEL_VARIABLES?
    # TODO or use get_slot_names()
    name = get_op_tensor_name(name)[0]
    if name.endswith('/Adam') or name.endswith('/Adam_1'):
        return True
    if name.endswith('/Momentum'):
        return True
    if name.endswith('/Adadelta') or name.endswith('/Adadelta_1'):
        return True
    if name.endswith('/RMSProp') or name.endswith('/RMSProp_1'):
        return True
    if name.endswith('/Adagrad'):
        return True
    if name.startswith('EMA/') or '/EMA/' in name:  # all the moving average summaries
        return True
    if name.startswith('AccumGrad') or name.endswith('/AccumGrad'):
        return True
    if name.startswith('apply_gradients'):
        return True
    return False
**Guess** if this variable is only used in training.
    Only used internally to avoid too many logging. Do not use it.