Python: Can you directly pass an audio file as user input command to Google Assistant SDK?

Google Assistant SDK: My user input is always constant, meaning same user command all the time, so instead of asking the user to everytime record a voice commandvia a device microphone, I want to have the user press a button and execute the command by passing a pre-recorded audio file as input. Is that possible with the Google assistant SDK? Preferably in Python as I want to built an API endpoint around it

Any links, blogs, tutorials, samples etc would be very helful

With the Google Assistant SDK, it accepts and text or audio data as an input.

It's currently something that can be shown in the pushtotalk sample.

Here's a few code snippets showing how it is done in the sample:

audio_source = audio_helpers.WaveSource(
        open(input_audio_file, 'rb'),
        sample_rate=audio_sample_rate,
        sample_width=audio_sample_width
# ...
# Create conversation stream with the 
# given audio source and sink.
conversation_stream = audio_helpers.ConversationStream(
    source=audio_source,
    sink=audio_sink,
    iter_size=audio_iter_size,
    sample_width=audio_sample_width,
)
# ...
with SampleAssistant(lang, device_model_id, device_id,
                     conversation_stream,
                     grpc_channel, grpc_deadline,
                     device_handler) as assistant:
    # If file arguments are supplied:
    # exit after the first turn of the conversation.
    if input_audio_file or output_audio_file:
        assistant.assist()
        return