parameters: (self, data)
docstring: called when potentially ignorable white spaces have been found
docstring_summary: called when potentially ignorable white spaces have been found
docstring_tokens: called when potentially ignorable white spaces have been found
function: def ignorableWhitespace(self, data):
          """called when potentially ignorable white spaces have been found"""
          pass
function_tokens: def ignorableWhitespace ( self , data ) : pass