code: def test_failing_tokens(self):
      self.check_failing_token("~")
      self.check_failing_token("`")
      self.check_failing_token("@")
      self.check_failing_token("$")
      self.check_failing_token("%")
      self.check_failing_token("^")
      self.check_failing_token("&")
      self.check_failing_token("-")
      self.check_failing_token("+")
      self.check_failing_token(";")
      self.check_failing_token("<")
      self.check_failing_token(">")
      self.check_failing_token(".")
      self.check_failing_token("..")
      self.check_failing_token("/")
      self.check_failing_token("|")
      self.check_failing_token("\\")
  
file_path: datashader/datashader/datashape/tests/test_lexer.py
imports: from __future__ import absolute_import, division, print_function
  import unittest
  from datashader import datashape
  from datashader.datashape import lexer
label_desc: Use image node_id 6 for calling the TestDataShapeLexer obj's underlying member method code with example usage: obj.test_failing_tokens() without return types