How to use the miniaudio.Devices function in miniaudio

def test_devices():
    devs = miniaudio.Devices()
    devs.get_playbacks()
    devs.get_captures()

def choose_device():
    devices = miniaudio.Devices()
    print("Available recording devices:")
    captures = devices.get_captures()
    for d in enumerate(captures):
        print("{num} = {name}".format(num=d[0], name=d[1]['name']))
    choice = int(input("record from which device? "))
    return captures[choice]

def choose_device():
    devices = miniaudio.Devices()
    print("Available playback devices:")
    playbacks = devices.get_playbacks()
    for d in enumerate(playbacks, 1):
        print("{num} = {name}".format(num=d[0], name=d[1]['name']))
    choice = int(input("play on which device? "))
    return playbacks[choice-1]

import array
from time import sleep
import miniaudio


if __name__ == "__main__":
    buffer_chunks = []

    def record_to_buffer():
        _ = yield
        while True:
            data = yield
            print(".", end="", flush=True)
            buffer_chunks.append(data)

    devices = miniaudio.Devices()
    print("Available recording devices:")
    captures = devices.get_captures()
    for p in enumerate(captures):
        print(p[0], "= ", p[1])
    choice = int(input("record from which device? "))

    selected_device = captures[choice]
    print("Recording from {}".format(selected_device.name))

    capture = miniaudio.CaptureDevice(buffersize_msec=1000, sample_rate=44100, device_id=selected_device._id)   # TODO: fix ownership of _id? or create copy?
    print(capture.format)
    generator = record_to_buffer()
    print("Recording for 3 seconds")
    next(generator)
    capture.start(generator)
    sleep(3)

import os
import miniaudio


def samples_path(filename):
    return os.path.join(os.path.abspath(os.path.dirname(__file__)), 'samples', filename)


if __name__ == "__main__":
    devices = miniaudio.Devices()
    selected_device = devices.get_playbacks()[0]
    print("Playing back through {}".format(selected_device.name))

    stream = miniaudio.stream_file(samples_path("music.mp3"))
    device = miniaudio.PlaybackDevice(device_id=selected_device.id)
    device.start(stream)
    input("Audio file playing in the background. Enter to stop playback: ")

import miniaudio

if __name__ == "__main__":
    devices = miniaudio.Devices()
    print("Backend: {}".format(devices.backend))
    print("\n")

    out_devices = devices.get_playbacks()
    print("Playback Devices")
    for device in out_devices:
        print("  {}".format(device.name))
        print("    {}".format(device.info()))
        print("\n")

    in_devices = devices.get_captures()
    print("Capture Devices")
    for device in in_devices:
        print("  {}".format(device.name))
        print("    {}".format(device.info()))
        print("\n")

def choose_devices():
    devices = miniaudio.Devices(backends=backends)
    print("Available capture devices:")
    captures = devices.get_captures()
    for d in enumerate(captures, 1):
        print("{num} = {name}".format(num=d[0], name=d[1]['name']))
    capture_choice = int(input("record from which device? "))
    print("\nAvailable playback devices:")
    playbacks = devices.get_playbacks()
    for d in enumerate(playbacks, 1):
        print("{num} = {name}".format(num=d[0], name=d[1]['name']))
    playback_choice = int(input("play on which device? "))
    return captures[capture_choice-1], playbacks[playback_choice-1]