class_docstr: Abstract base class for path entry finders used by PathFinder.
docstr: An optional method for clearing the finder's cache, if any.
  This method is used by PathFinder.invalidate_caches().
docstr_tok: ["An","optional","method","for","clearing","the","finder","'s","cache",",","if","any",".","This","method","is","used","by","PathFinder.invalidate_caches","(",")","."]
code: def invalidate_caches(self):
      """An optional method for clearing the finder's cache, if any.
      This method is used by PathFinder.invalidate_caches().
      """
  
imports: from .None import _bootstrap_external
  from .None import machinery
  from ._abc import Loader
  import abc
  import warnings
  from .resources import abc
label_desc: Use image node_id 1 for calling the PathEntryFinder obj's underlying member method code with example usage: obj.invalidate_caches() without return types