input: 
  def create_visualization(x_values, y_values):
      """Create a bar chart using Matplotlib that displays the popularity of the top 5 most 
      popular programming languages.
      >>> x_values = ["Python", "Java", "C++", "Javascript", "C#"]
      >>> y_values = [45, 25, 15, 10, 5]
      >>> create_visualization(x_values, y_values)
      """
  
output:     import matplotlib.pyplot as plt
  
      plt.bar(x_values, y_values)
      plt.xlabel('Programming Languages')
      plt.ylabel('Popularity')
      plt.title('Top 5 Most Popular Programming Languages')
      plt.show()