The city shall not be liable for damages to anyone on account
of any defect in, obstruction on, or anything else in connection with
any sidewalk in the city.
It shall not be necessary in any action, suit, or proceeding
in which the city is a party, for any bond, undertaking, or security
to be executed in behalf of the city; but all such actions, suits,
appeals, or proceedings shall be conducted in the same manner as if
such bond, undertaking, or security had been given, and the city shall
be liable as if such obligation had been duly given and executed.