Hi @<1523701205467926528:profile|AgitatedDove14>

My preprocess file:

from typing import Any, Union, Optional, Callable

class Preprocess(object):
    def init(self):
        pass

    def preprocess(
            self,
            body: Union[bytes, dict],
            state: dict, 
            collect_custom_statistics_fn: Optional[Callable[[dict], None]]
        ) -> Any:
        return body["length"], body["audio_signal"]

    def postprocess(
            self,
            data: Any,
            state: dict, 
            collect_custom_statistics_fn: Optional[Callable[[dict], None]]
        ) -> dict:
        return {
            "encoded_lengths": data["encoded_lengths"].tolist(),
            "output": data["output"].tolist()
        }

My request code that returns error:

import numpy as np
import requests
batch = 4
length = 3
body={
    "length": [length] * batch,
    "audio_signal": np.random.randn(batch, 80, length).astype(np.float16).tolist()
}
response = 

(f"<>", json=body)
response.json()