docstr: :param appid: appid for requesting Baidu translation service.
  :param appkey: appkey for requesting Baidu translation service.
docstr_tok: [":","param","appid",":","appid","for","requesting","Baidu","translation","service",".",":","param","appkey",":","appkey","for","requesting","Baidu","translation","service","."]
code: def __init__(self, appid=None, appkey=None):
      """
      :param appid: appid for requesting Baidu translation service.
      :param appkey: appkey for requesting Baidu translation service.
      """
      # Set your own appid/appkey.
      if appid == None:
          self.appid = os.getenv("BT_APPID")
      else:
          self.appid = appid
      if appkey is None:
          self.appkey = os.getenv("BT_APPKEY")
      else:
          self.appkey = appkey
      if self.appid is None and self.appkey is None:
          raise RuntimeError("Please set appid and appkey.")
      self.url = "http://api.fanyi.baidu.com/api/trans/vip/translate"
  
file_path: PaddleHub/modules/text/machine_translation/baidu_translate/module.py
imports: import argparse
  import os
  import random
  from hashlib import md5
  from typing import Optional
  import requests
  import paddlehub
  from paddlehub.module.module import moduleinfo
  from paddlehub.module.module import runnable
  from paddlehub.module.module import serving
label_desc: Use image node_id 1 to create a new BaiduTranslate object  with example: obj = BaiduTranslate(appid, appkey)