def move(self, delta):
pos = self.pos<EOL>self.pos = (pos[<NUM_LIT:0>]+delta[<NUM_LIT:0>], pos[<NUM_LIT:1>]+delta[<NUM_LIT:1>], pos[<NUM_LIT:2>]+delta[<NUM_LIT:0>], pos[<NUM_LIT:3>]+delta[<NUM_LIT:1>])<EOL>for age in self.nodes:<EOL><INDENT>for node in age:<EOL><INDENT>node.move(delta)<EOL><DEDENT><DEDENT>
Move the tree.

        Args:
            delta (tupel): The adjustment of the position.