input: Write a python function to analyze the sentiment of a given text.
  assert sentiment_analyzer("I love sunny days!") == {'neg': 0.0, 'neu': 0.369, 'pos': 0.631, 'compound': 0.8516}
  assert sentiment_analyzer("I hate rainy days!") == {'neg': 0.462, 'neu': 0.538, 'pos': 0.0, 'compound': -0.5719}
  assert sentiment_analyzer("This is the best day ever!") == {'neg': 0.0, 'neu': 0.379, 'pos': 0.621, 'compound': 0.875}
output: def sentiment_analyzer(text):
      from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer
      analyzer = SentimentIntensityAnalyzer()
      sentiment_dict = analyzer.polarity_scores(text)
      return sentiment_dict