class_docstr: path implementation that offers access to (possibly remote) subversion
  repositories. 
code: def _norev_delentry(self, path):
      auth = self.auth and self.auth.makecmdoptions() or None
      self._lsnorevcache.delentry((str(path), auth))
  
imports: import os, sys, time, re
  import py
  from py import path, process
  from py._path import common
  from py._path import svnwc
  from py._path.cacheutil import BuildcostAccessCache, AgingCache
label_desc: Use image node_id 10 for calling the SvnCommandPath obj's underlying member method code with example usage: obj._norev_delentry(path) without return types