(self, node, refNode)
Insert node as a child of the current node, before refNode in the
        list of child nodes. Raises ValueError if refNode is not a child of
        the current node

        :arg node: the node to insert

        :arg refNode: the child node to insert the node before
Insert node as a child of the current node, before refNode in the
        list of child nodes. Raises ValueError if refNode is not a child of
        the current node
Insert node as a child of the current node before refNode in the list of child nodes . Raises ValueError if refNode is not a child of the current node
def insertBefore(self, node, refNode):
        """Insert node as a child of the current node, before refNode in the
        list of child nodes. Raises ValueError if refNode is not a child of
        the current node

        :arg node: the node to insert

        :arg refNode: the child node to insert the node before

        """
        raise NotImplementedError
def insertBefore ( self , node , refNode ) : raise NotImplementedError