input: def create_data_visualization_dashboard():
      """ Create a data visualization dashboard in Python using Matplotlib.
      >>> import matplotlib.pyplot as plt
      >>> x = [1, 2, 3, 4, 5]
      >>> y = [10, 25, 30, 50, 80]
      >>> fig = plt.figure(figsize=(10, 6))
      >>> plt.plot(x, y, color='green', marker='o', linestyle='dashed', linewidth=2, markersize=12)
      >>> plt.title("My Data Visualization Dashboard")
      >>> plt.xlabel('X-axis')
      >>> plt.ylabel('Y-axis')
      >>> plt.show()
      None
      """
output:     import matplotlib.pyplot as plt
      x = [1, 2, 3, 4, 5]
      y = [10, 25, 30, 50, 80]
      fig = plt.figure(figsize=(10, 6))
      plt.plot(x, y, color='green', marker='o', linestyle='dashed', linewidth=2, markersize=12)
      plt.title("My Data Visualization Dashboard")
      plt.xlabel('X-axis')
      plt.ylabel('Y-axis')
      plt.show()