在synthesize_streaming.py里加了alpha参数，在paddle转onnx的时候会提示不支持的算子，这个是不是没法解决呀？

[wmlgl]

加的参数
synthesize_streaming.py

        am_encoder_infer = jit.to_static(
            am_encoder_infer,
            input_spec=[
                InputSpec([-1], dtype=paddle.int64),  // xs
                InputSpec([1], dtype=paddle.int64), // spk
                InputSpec([1], dtype=paddle.float64), //alpha
            ], )

提示如下：
Oops, there are some operators not supported yet, including conditional_block,select_input