input: Write a function to create a Text-to-Speech Python application that reads out a simple sentence. The function should initialize the pyttsx3 engine, say the given sentence, and then run and wait for the speech to complete.
  import pyttsx3
  
  def text_to_speech(sentence):
      engine = pyttsx3.init()
      engine.say(sentence)
      engine.runAndWait()
      
  assert text_to_speech("Hello, this is a simple sentence")==None
  assert text_to_speech("This is another sentence")==None
output: def text_to_speech(sentence):
      engine = pyttsx3.init()
      engine.say(sentence)
      engine.runAndWait()