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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 fit(self, X):
 """Fit a model to the data updating the parameters. Args: X: `np.ndarray` of shape (,2). Return: None """

        U, V = self.split_matrix(X)
        self.tau = stats.kendalltau(U, V)[0]
        self.theta = self.compute_theta()
        self.check_theta()