input: from typing import Dict
  
  def analyze_sentiment(review: str) -> Dict[str, float]:
      """ Analyze the sentiment of a movie review using VADER.
      Given a review as input, return a dictionary with keys 'pos', 'neg', 'neu', and 'compound' 
      representing the positive, negative, neutral, and compound sentiment scores respectively.
      >>> analyze_sentiment('The movie was terrible. It felt like it would never end!')
      {'neg': 0.657, 'neu': 0.343, 'pos': 0.0, 'compound': -0.802},
      >>> analyze_sentiment('A wonderful movie that kept me entertained throughout.')
      {'neg': 0.0, 'neu': 0.435, 'pos': 0.565, 'compound': 0.875}
      """
      sid = vader.SentimentIntensityAnalyzer()
      scores = sid.polarity_scores(review)
      return scores
output:     from vaderSentiment import SentimentIntensityAnalyzer as vader