/// ////interface T { [|[|{| "isDefinition": true, "contextRangeIndex": 0 |}a|]: number;|] } ////type U = { readonly [K in keyof T]?: string }; ////declare const t: T; ////t.[|a|]; ////declare const u: U; ////u.[|a|]; verify.singleReferenceGroup("(property) T.a: number", "a");