GraphQLIsTypeOfFntype GraphQLIsTypeOfFn<TSource, TContext> = (source: TSource,context: TContext,info: GraphQLResolveInfo,) => PromiseOrValue<boolean>;§Type Parameters§TSource[src]§TContext[src]§Type§(source: TSource, context: TContext, info: GraphQLResolveInfo) => PromiseOrValue<boolean>[src]