(self)
return self.parent is None
Returns true, if this node is the root of a channel tree (the virtual
        server).
Returns true, if this node is the root of a channel tree (the virtual
        server).
Returns true if this node is the root of a channel tree ( the virtual server ) .
def is_root(self):
        """
        Returns true, if this node is the root of a channel tree (the virtual
        server).
        """
        return self.parent is None
def is_root ( self ) : return self . parent is None