code: def testMultipleDirectories(self):
      self.assertPlatformSpecificLogdirParsing(
          posixpath, "/a,/b", {"/a": None, "/b": None}
      )
      self.assertPlatformSpecificLogdirParsing(
          ntpath, "C:\\a,C:\\b", {"C:\\a": None, "C:\\b": None}
      )
  
imports: import ntpath
  import os
  import posixpath
  import time
  from unittest import mock
  from tensorboard import test
  from tensorboard.backend.event_processing import data_ingester
  from tensorboard.compat import tf
label_desc: Use image node_id 7 for calling the ParseEventFilesSpecTest obj's underlying member method code with example usage: obj.testMultipleDirectories() without return types