parameters: (self, **kwargs)
docstring: Override to apply the transform to the document tree.
docstring_summary: Override to apply the transform to the document tree.
docstring_tokens: Override to apply the transform to the document tree .
function: def apply(self, **kwargs):
          """Override to apply the transform to the document tree."""
          raise NotImplementedError('subclass must override this method')
function_tokens: def apply ( self , * * kwargs ) : raise NotImplementedError ( 'subclass must override this method' )