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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 check_model(self):
 """ Checks the model for various errors. This method checks for the following error - * Checks if the CPDs associated with nodes are consistent with their parents. Returns ------- check: boolean True if all the checks pass. """

        for node in self.nodes():
            cpd = self.get_cpds(node=node)

            if isinstance(cpd, LinearGaussianCPD):
                if set(cpd.evidence) != set(self.get_parents(node)):
                    raise ValueError("CPD associated with %s doesn't have "
                                     "proper parents associated with it." % node)
        return True