parameters: (self)
docstring: content display hook for sub-classes
docstring_summary: content display hook for sub-classes
docstring_tokens: content display hook for sub - classes
function: def showcontents(self):
          """content display hook for sub-classes"""
          # See ToolTip for an example
          raise NotImplementedError
function_tokens: def showcontents ( self ) : # See ToolTip for an example raise NotImplementedError