code: def register_projection(cls):
      projection_registry.register(cls)
  
file_path: catboost/contrib/python/matplotlib/py3/matplotlib/projections/__init__.py
imports: from ..None import axes, _docstring
  from .geo import AitoffAxes, HammerAxes, LambertAxes, MollweideAxes
  from .polar import PolarAxes
label_desc: Use image node_id 1 for calling a global function with example usage: register_projection(cls) without return types