code: def register():
      """Register the unit conversion classes with matplotlib."""
      import matplotlib.units as mplU
  
      mplU.registry[str] = StrConverter()
      mplU.registry[Epoch] = EpochConverter()
      mplU.registry[Duration] = EpochConverter()
      mplU.registry[UnitDbl] = UnitDblConverter()
  
file_path: catboost/contrib/python/matplotlib/py2/matplotlib/testing/jpl_units/__init__.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  from .Duration import Duration
  from .Epoch import Epoch
  from .UnitDbl import UnitDbl
  from .StrConverter import StrConverter
  from .EpochConverter import EpochConverter
  from .UnitDblConverter import UnitDblConverter
  from .UnitDblFormatter import UnitDblFormatter
label_desc: Use image node_id 1 for calling a global function with example usage: register() without return types