class_docstr: Abstract base class for import finders on sys.meta_path.
class_docstr_tok: ["Abstract","base","class","for","import","finders","on","sys.meta_path","."]
docstr: An optional method for clearing the finder's cache, if any.
  This method is used by importlib.invalidate_caches().
docstr_tok: ["An","optional","method","for","clearing","the","finder","'s","cache",",","if","any",".","This","method","is","used","by","importlib.invalidate_caches","(",")","."]
code: def invalidate_caches(self):
      """An optional method for clearing the finder's cache, if any.
      This method is used by importlib.invalidate_caches().
      """
  
imports: from .None import _bootstrap_external
  from .None import machinery
  from ._abc import Loader
  import abc
  import warnings
  from .resources.abc import ResourceReader, Traversable, TraversableResources
label_desc: Use image node_id 2 for calling the MetaPathFinder obj's underlying member method code with example usage: obj.invalidate_caches() without return types