The GMSPlace defines the "attributions" property as: "The data provider attribution string for this place. These are provided as a NSAttributedString, which may contain hyperlinks to the website of each provider." I'm using this in my app, but haven't been able to test this since every place I've looked up does not have any attributions.
My question is: does anyone know of a place I can lookup which includes attributions?
Have you try the code from the example in https://developers.google.com/places/ios-api/attributions#attributions-place?
I have use the code and found a place have the attribution with PlaceID ChIJV4k8_9UodTERU5KXbkYpSYs. I think you can also try and find more from that code.