class_docstr: A mapping of registered projection names to projection classes.
code: def __init__(self):
      self._all_projection_types = {}
  
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 to create a new ProjectionRegistry object  with example: obj = ProjectionRegistry()