parameters: (self, content)
docstring: called when a comment has been found, content contains the comment
docstring_summary: called when a comment has been found, content contains the comment
docstring_tokens: called when a comment has been found content contains the comment
function: def comment(self, content):
          """called when a comment has been found, content contains the comment"""
          pass
function_tokens: def comment ( self , content ) : pass