input: from typing import Dict
  
  def classify_sentiment(review: str) -> Dict[str, float]:
      """
      Classify the sentiment of a given movie review using the VADER sentiment analyzer.
      :return: A dictionary with the polarity scores for 'neg', 'neu', 'pos', and 'compound'.
  
      >>> classify_sentiment('The movie was terrible. It felt like it would never end!')
      {'neg': 0.509, 'neu': 0.491, 'pos': 0.0, 'compound': -0.7717}
      """
output:     
      from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer
      analyzer = SentimentIntensityAnalyzer()
      sentiment = analyzer.polarity_scores(review)
      return sentiment
  