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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_node_angle(self, node):
 """Get the angle beetween 2 nodes relative to the horizont. Args: node (object):
 The other node. Returns: rad: The angle """

        return atan2(self.pos[0]-node.pos[0], self.pos[1]-node.pos[1]) - pi / 2