parameters: (self)
return_statement: return ''.join(c for c in self.gtest_filter if c in filename_chars)
docstring: Gets a signature from gtest_filter.
  
      Signature is used to identify the tests from which we collect debug
      information.
  
      Returns:
        A signature string. Returns 'all' if there is no gtest filter.
docstring_summary: Gets a signature from gtest_filter.
docstring_tokens: Gets a signature from gtest_filter .
function: def _GetSignatureFromGTestFilter(self):
      """Gets a signature from gtest_filter.
  
      Signature is used to identify the tests from which we collect debug
      information.
  
      Returns:
        A signature string. Returns 'all' if there is no gtest filter.
      """
      if not self.gtest_filter:
        return 'all'
      filename_chars = "-_()%s%s" % (string.ascii_letters, string.digits)
      return ''.join(c for c in self.gtest_filter if c in filename_chars)
function_tokens: def _GetSignatureFromGTestFilter ( self ) : if not self . gtest_filter : return 'all' filename_chars = "-_()%s%s" % ( string . ascii_letters , string . digits ) return '' . join ( c for c in self . gtest_filter if c in filename_chars )