Set one of the three available Axes titles. The available titles are positioned above the Axes in the center, flush with the left edge, and flush with the right edge.
Parameters:
label: str
Text to use for the title
fontdict: dict
Discouraged: The use of fontdict is discouraged. Parameters should be passed as individual keyword arguments or using dictionary-unpacking set_title(..., ﹡﹡fontdict).
A dictionary controlling the appearance of the title text, the default fontdict is:
Vertical Axes location for the title (1.0 is the top). If None (the default) and rcParams["axes.titley"] (default: None) is also None, y is determined automatically to avoid decorators on the Axes.