code: def tts(text, output_file):
      payload = text
      headers = {
          "api-key": "WW5ZxG2GZBKyilP5joBjcPfiQsTcshON",
          "speed": "",
          "voice": "thuminh",
      }
  
      url = "https://api.fpt.ai/hmi/tts/v5"
      response = requests.request(
          "POST", url, data=payload.encode("utf-8"), headers=headers
      )
  
      mp3_file_url = response.json()["async"]
  
      r = requests.get(mp3_file_url, allow_redirects=True)
      with open(output_file, "wb") as f:
          f.write(r.content)
  
file_path: underthesea/examples/vietnamese_ipa/get_sounds.py
imports: from time import sleep
  import requests
  from underthesea.utils import logger
label_desc: Use image node_id 1 for calling the FPTAI obj's underlying member method code with example usage: obj.tts(text, output_file) without return types