input: Write a python function to analyze the sentiment of a given text using the TextBlob library and return the sentiment polarity.
  assert analyze_sentiment('This product is a great example of quality craftsmanship and excellent engineering.') == 0.625
  assert analyze_sentiment('I am extremely disappointed with the service.') < 0
  assert analyze_sentiment('The movie was okay, not bad but not great either.') == 0.0
output: def analyze_sentiment(text):
      from textblob import TextBlob
      
      blob = TextBlob(text)
      return blob.sentiment.polarity