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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 getVerifiers(self):
 """Returns the list of lab contacts that have verified at least one analysis from this Analysis Request """

        contacts = list()
        for verifier in self.getVerifiersIDs():
            user = api.get_user(verifier)
            contact = api.get_user_contact(user, ["LabContact"])
            if contact:
                contacts.append(contact)
        return contacts