Documentation Link

https://matplotlib.org/stable/api/_as_gen/matplotlib.patches.FancyBboxPatch.html

Problem

FancyBboxPatch shows float as the suggested type for xy parameter. However 'xy' should be a tuple of two floats. Seem like it is caused by missing parenthesis.

Suggested improvement

Change the type hint form xy: float, float to xy: (float, float)