input: def display_top_languages(x_values: List[str], y_values: List[int]) -> None:
      """Generate a bar chart using Matplotlib to display the top 5 most popular programming languages.
      The x-values represent the programming languages and the y-values represent their respective popularity percentages.
  
      >>> x_values = ["Python", "Java", "C++", "Javascript", "C#"]
      >>> y_values = [45, 25, 15, 10, 5]
      >>> display_top_languages(x_values, y_values)
      '''
      This function will generate a bar chart with the following specifications:
      - Title: "Popular Programming Languages"
      - y-label: "Percentage of Use"
      - x-label: "Languages"
      - Bars representing the languages in the order provided.
      '''
      """
output:     import matplotlib.pyplot as plt
  
      plt.figure(figsize=(10, 6))
      plt.bar(x_values, y_values, color='skyblue')
      plt.title("Popular Programming Languages")
      plt.ylabel("Percentage of Use")
      plt.xlabel("Languages")
      plt.show()