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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 with_transaction(self, callback, read_concern=None, write_concern=None, read_preference=None):
 """Execute a callback in a transaction. This method starts a transaction on this session, executes ``callback`` once, and then commits the transaction. For example:: def callback(session):
 orders = session.client.db.orders inventory = session.client.db.inventory orders.insert_one({"sku": "abc123", "qty": 100}, session=session) inventory.update_one({"sku": "abc123", "qty": {"$gte": 100}}, {"$inc": {"qty": -100}}, session=session) with client.start_session() as session: session.with_transaction(callback) To pass arbitrary arguments to the ``callback``, wrap your callable with a ``lambda`` like this:: def callback(session, custom_arg, custom_kwarg=None):
 with client.start_session() as session: session.with_transaction( lambda s: callback(s, "custom_arg", custom_kwarg=1)) In the event of an exception, ``with_transaction`` may retry the commit or the entire transaction, therefore ``callback`` may be invoked multiple times by a single call to ``with_transaction``. Developers should be mindful of this possiblity when writing a ``callback`` that modifies application state or has any other side-effects. Note that even when the ``callback`` is invoked multiple times, ``with_transaction`` ensures that the transaction will be committed at-most-once on the server. The ``callback`` should not attempt to start new transactions, but should simply run operations meant to be contained within a transaction. The ``callback`` should also not commit the transaction; this is handled automatically by ``with_transaction``. If the ``callback`` does commit or abort the transaction without error, however, ``with_transaction`` will return without taking further action. When ``callback`` raises an exception, ``with_transaction`` automatically aborts the current transaction. When ``callback`` or :meth:`~ClientSession.commit_transaction` raises an exception that includes the ``"TransientTransactionError"`` error label, ``with_transaction`` starts a new transaction and re-executes the ``callback``. When :meth:`~ClientSession.commit_transaction` raises an exception with the ``"UnknownTransactionCommitResult"`` error label, ``with_transaction`` retries the commit until the result of the transaction is known. This method will cease retrying after 120 seconds has elapsed. This timeout is not configurable and any exception raised by the ``callback`` or by :meth:`ClientSession.commit_transaction` after the timeout is reached will be re-raised. Applications that desire a different timeout duration should not use this method. :Parameters: - `callback`: The callable ``callback`` to run inside a transaction. The callable must accept a single argument, this session. Note, under certain error conditions the callback may be run multiple times. - `read_concern` (optional):
 The :class:`~pymongo.read_concern.ReadConcern` to use for this transaction. - `write_concern` (optional):
 The :class:`~pymongo.write_concern.WriteConcern` to use for this transaction. - `read_preference` (optional):
 The read preference to use for this transaction. If ``None`` (the default) the :attr:`read_preference` of this :class:`Database` is used. See :mod:`~pymongo.read_preferences` for options. :Returns: The return value of the ``callback``. .. versionadded:: 3.9 """

        start_time = monotonic.time()
        while True:
            self.start_transaction(
                read_concern, write_concern, read_preference)
            try:
                ret = callback(self)
            except Exception as exc:
                if self._in_transaction:
                    self.abort_transaction()
                if (isinstance(exc, PyMongoError) and
                        exc.has_error_label("TransientTransactionError") and
                        _within_time_limit(start_time)):
                    # Retry the entire transaction.
                    continue
                raise

            if self._transaction.state in (
                    _TxnState.NONE, _TxnState.COMMITTED, _TxnState.ABORTED):
                # Assume callback intentionally ended the transaction.
                return ret

            while True:
                try:
                    self.commit_transaction()
                except PyMongoError as exc:
                    if (exc.has_error_label("UnknownTransactionCommitResult")
                            and _within_time_limit(start_time)):
                        # Retry the commit.
                        continue

                    if (exc.has_error_label("TransientTransactionError") and
                            _within_time_limit(start_time)):
                        # Retry the entire transaction.
                        break
                    raise

                # Commit succeeded.
                return ret