code: def __enter__(self):
      rc = mpl.rcParams
      self._orig = {k: rc[k] for k in self._keys}
      self._set(self)
  
imports: import functools
  import matplotlib
  from cycler import cycler
  from .None import palettes
label_desc: Use image node_id 1 for calling the _RCAesthetics obj's underlying member method code with example usage: obj.__enter__() without return types