nxModel): ONNX model
        batch_size (int): batch size
        sequence_length (int): sequence length
        past_sequence_length (int): past sequence length
        samples (int): number of samples

    Raises:
        RuntimeError: symbolic is not supported. Use the tool convert_to_onnx.py to export ONNX model instead.

    Returns:
        List[Dict]: list of inputs
    )