### Actual outcome

```---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Input In [1], in <module>
      2 print(matplotlib.__version__)
      3 import matplotlib.ticker
----> 4 matplotlib.ticker.ScalarFormatter()

File /usr/lib/python3.10/site-packages/matplotlib/ticker.py:444, in ScalarFormatter.__init__(self, useOffset, useMathText, useLocale)
    442 if useMathText is False:
    443     try:
--> 444         ufont = mpl.font_manager.findfont(
    445             mpl.font_manager.FontProperties(
    446                 mpl.rcParams["font.family"]
    447             ),
    448             fallback_to_default=False,
    449         )
    450     except ValueError:
    451         ufont = None

File /usr/lib/python3.10/site-packages/matplotlib/_api/__init__.py:222, in caching_module_getattr.<locals>.__getattr__(name)
    220 if name in props:
    221     return props[name].__get__(instance)
--> 222 raise AttributeError(
    223     f"module {cls.__module__!r} has no attribute {name!r}")

AttributeError: module 'matplotlib' has no attribute 'font_manager'

import matplotlib.font_manager