input: Write a function to create a data visualization dashboard in Python using Matplotlib. The function should take two lists as input, representing the x and y values, and generate a plot with the title "My Data Visualization Dashboard" and appropriate labels on the x and y axes. The plot should also use green color, dashed line style, and filled circles for each data point. The function should then display the plot.
  assert visualize_dashboard([1,2,3,4,5], [10,25,30,50,80])==None
  assert visualize_dashboard([1,2,3,4,5], [20,35,40,60,90])==None
  assert visualize_dashboard([], [])==None
output: def visualize_dashboard(x, y):
      import matplotlib.pyplot as plt
      plt.plot(x, y, color='green', linestyle='dashed', marker='o', markerfacecolor='green')
      plt.title("My Data Visualization Dashboard")
      plt.xlabel("x values")
      plt.ylabel("y values")
      plt.show()