input: Write a function to implement a Text-to-Speech application in Python that reads out a simple sentence provided as input. If the input sentence is empty, the function should not produce any output.
  def text_to_speech(sentence):
      if sentence:
          import pyttsx3
          engine = pyttsx3.init()
          engine.say(sentence)
          engine.runAndWait()
  
  assert text_to_speech("Hello, this is a simple sentence")==None
  assert text_to_speech("The quick brown fox jumps over the lazy dog")==None
  assert text_to_speech("")==None
  assert text_to_speech("12345")==None
  assert text_to_speech("Python is fun")==None
output: def text_to_speech(sentence):
      if sentence:
          import pyttsx3
          engine = pyttsx3.init()
          engine.say(sentence)
          engine.runAndWait()