    def release_op(self, op: Operator):
        """
        Releases the specified operator and all associated resources back to the
        `OperatorPool`.

        Args:
            op: (`towhee.Operator`)
                `Operator` instance to add back into the operator pool.
        """
        with self._lock:
            storage = self._all_ops[op.key]
            storage.put(op)
Releases the specified operator and all associated resources back to the
`OperatorPool`.

Args:
op: (`towhee.Operator`)
`Operator` instance to add back into the operator pool.
towhee/runtime/operator_manager/operator_pool.py