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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 _read_stream(self, stream):
 """ Read in the pod stream """

        data = yaml.safe_load_all(stream=stream)
        obj = self._find_convertable_object(data)
        pod = self.pod_types[obj['kind']](obj)
        return obj, pod.get('containers'), self.ingest_volumes_param(pod.get('volumes', []))