我使用 google 语音转文本 API 从音频中获取字幕，但是当音频太长时，通常超过 60 分钟，重试次数过多会失败。它说：google.api_core.exceptions.GoogleAPICallError: None Too many重试，放弃。
有人能帮我吗 ？？
我试过很多次，当音频文件短于60分钟左右时，就可以了。
client = speech.SpeechClient()
# Loads audio into memory.
audio = types.RecognitionAudio(uri=gcs_uri)
config = types.RecognitionConfig(
encoding=enums.RecognitionConfig.AudioEncoding.OGG_OPUS,
sample_rate_hertz=48000,
language_code='en-US',
enable_word_time_offsets=True,
enable_automatic_punctuation=True)
# Detects speech in the audio file
operation = client.long_running_recognize(config, audio)
print('Waiting for operation to complete...')
# Get the feedback from Google Cloud API
operation.add_done_callback(callback)
time.sleep(30)
#metadata = operation.metadata
# Every 30 seconds to get back one response
percentile(operation, 30)
response = operation.result(timeout=None)