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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(self, instance):
 """ Process both the istio_mesh instance and process_mixer instance associated with this instance """


        # Get the config for the istio_mesh instance
        istio_mesh_endpoint = instance.get('istio_mesh_endpoint')
        istio_mesh_config = self.config_map[istio_mesh_endpoint]

        # Process istio_mesh
        self.process(istio_mesh_config)

        # Get the config for the process_mixer instance
        process_mixer_endpoint = instance.get('mixer_endpoint')
        process_mixer_config = self.config_map[process_mixer_endpoint]

        # Process process_mixer
        self.process(process_mixer_config)