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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 Equals(self, other):
 """ Returns true of self and other are approximately equal. """

    return (self._approxEq(self.x, other.x)
            and self._approxEq(self.y, other.y)
            and self._approxEq(self.z, other.z))