<human>:  subplot set the whole title.
<bot>: Here is a Python function to subplot set the whole title

import matplotlib.pyplot as plt

def subplot_title(ax, title):
  """ Set the whole title for the subplot. """
  ax.set_title(title)

# Enter the subplot
fig, ax = plt.subplots()

# Enter the title
title = "My Title"

# Calling the function
print((subplot_title(ax, title)))

#Example Output
# None

#Remember to inspect code for bugs.