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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 qualifyContracts(self, *contracts: List[Contract]) -> List[Contract]: """ Fully qualify the given contracts in-place. This will fill in the missing fields in the contract, especially the conId. Returns a list of contracts that have been successfully qualified. This method is blocking. Args: contracts: Contracts to qualify. """

        return self._run(self.qualifyContractsAsync(*contracts))