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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 copy(self):
 """Create a copy of the VAR model."""

        other = self.__class__(self.p)
        other.coef = self.coef.copy()
        other.residuals = self.residuals.copy()
        other.rescov = self.rescov.copy()
        return other