old_contents: import sys, subprocess
  
  class AzureSpeechRecognizer():
      def __init__(self):
          pass
  
      def recognize(self, audio_file):
          """recognize audio file
  
          args:
              audio_file (str)
  
          return:
              result (str/False)
          """
          return None
  
  
new_contents: import sys, subprocess
  import azure.cognitiveservices.speech as speechsdk
  
  class AzureSpeechRecognizer():
      def __init__(self, speech_key, service_region):
          self.speech_key = speech_key
          self.service_region = service_region
          self.speech_config = speechsdk.SpeechConfig(subscription=self.speech_key, region=self.service_region)
          self.speech_recognizer = speechsdk.SpeechRecognizer(speech_config=self.speech_config)
  
      def recognize(self, audio_file):
          """recognize audio file
  
          args:
              audio_file (str)
  
          return:
              result (str/False)
          """
          return None
  
  
subject: add azure speech config