input: from typing import Tuple, List
  
  def create_data_viz_dashboard(x_data: List[int], y_data: List[int], title: str, x_label: str, y_label: str, fig_size: Tuple[int, int] = (10, 6)) -> None:
      """
      Create a data visualization dashboard using Matplotlib. The function takes lists of 
      x and y data points, title for the plot, labels for x and y axes, and an optional 
      figure size. The function then plots the data with a green dashed line with markers 
      and displays the plot.
      
      >>> create_data_viz_dashboard([1,2,3,4,5], [10,25,30,50,80], "My Data Visualization Dashboard", 'X-axis', 'Y-axis')
      (Plotting the loaded data with given specifications and showing the plot)
      """
output:     import matplotlib.pyplot as plt
  
      plt.figure(figsize=fig_size)
      plt.plot(x_data, y_data, 'g--o')
      plt.title(title)
      plt.xlabel(x_label)
      plt.ylabel(y_label)
      plt.show()