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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 add_authorizers(self, authorizers):
 """ Add Authorizer definitions to the securityDefinitions part of Swagger. :param list authorizers: List of Authorizer configurations which get translated to securityDefinitions. """

        self.security_definitions = self.security_definitions or {}

        for authorizer_name, authorizer in authorizers.items():
            self.security_definitions[authorizer_name] = authorizer.generate_swagger()