parameters: (self, node)
docstring: Insert node as a child of the current node
docstring_summary: Insert node as a child of the current node
docstring_tokens: Insert node as a child of the current node
function: def appendChild(self, node):
          """Insert node as a child of the current node
          """
          raise NotImplementedError
function_tokens: def appendChild ( self , node ) : raise NotImplementedError