Before granting a permit to any public service company or quasi-municipal utility to trim or remove trees, plants, shrubs or vegetation as authorized by the council’s resolution, the licensing officer shall require the utility or quasi-municipal corporation to enter into an undertaking to hold the city harmless from damage or claim thereof resulting or alleged to result from such trimming or removal and to reimburse the city for the actual and reasonable cost of supervision by a city inspector of the trimming and removal. (1961 code § 10.20.080.)