input: from typing import List
  
  def display_top_languages(x_values: List[str], y_values: List[int]) -> None:
      """ Create a visualization in Python using Matplotlib that displays the top 5 most popular 
      programming languages.
      >>> x_values = ["Python", "Java", "C++", "Javascript", "C#"]
      >>> y_values = [45, 25, 15, 10, 5]
      >>> display_top_languages(x_values, y_values)
      (No return value, displays a bar chart)
      """
output:     import matplotlib.pyplot as plt
  
      # Sort the languages by popularity
      sorted_indices = sorted(range(len(y_values)), key=lambda k: y_values[k], reverse=True)
      top_x_values = [x_values[i] for i in sorted_indices[:5]]
      top_y_values = [y_values[i] for i in sorted_indices[:5]]
  
      # Create the bar chart
      plt.bar(top_x_values, top_y_values)
      plt.xlabel('Programming Languages')
      plt.ylabel('Popularity')
      plt.title('Top 5 Most Popular Programming Languages')
      plt.show()