Abstract type "TravelTips" must resolve to an Object type at runtime for field "Query.travelTipBySlug". Either the "TravelTips" type should provide a "resolveType" function or each possible type should provide an "isTypeOf" function.
Safety Tip #4
Airport tips
Listen to my words: never, ever, ever accept a ride from someone at the airport unless on an app or directly from a white taxi. You will be hounded with people asking if you want a ride or saying "taxi, taxi" and just know, they are private drivers. Although I am sure it is fine, do not fall into the trap! Take a trusted car service!
Take money out: if you don't have money already available, take some money out at the airport just in case you might need it.
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