input: from typing import List, Union
  import matplotlib.pyplot as plt
  
  def create_popular_languages_visualization(x_values: List[str], y_values: List[int], title: str, y_label: str, x_label: str) -> None:
      """Create a bar chart using Matplotlib to visualize the top 5 most popular programming languages.
      The input lists x_values and y_values should contain the names of the languages and their respective 
      popularity percentages. The function will display the bar chart with the given title, y_label, and x_label.
      >>> create_popular_languages_visualization(["Python", "Java", "C++", "Javascript", "C#"], [45, 25, 15, 10, 5], "Popular Programming Languages", "Percentage of Use", "Languages")
      # Displays a bar chart
      """
      plt.bar(x_values, y_values)
      plt.title(title)
      plt.ylabel(y_label)
      plt.xlabel(x_label)
      plt.show()
output:     plt.xticks(rotation=45)
      plt.tight_layout()