code: def with_blob(self, blob):
          
          content = json.loads(blob.content)
          self.partition_id = content["partition_id"]
          self.owner = content["owner"]
          self.token = content["token"]
          self.epoch = content["epoch"]
          self.offset = content["offset"]
          self.sequence_number = content["sequence_number"]
          self.event_processor_context = content.get("event_processor_context")
docs: Init Azure Blob Lease with existing blob.