/// ////interface I { //// x: { readonly [K in keyof X]: X[K] }; ////} ////class C implements I {} verify.codeFix({ description: "Implement interface 'I'", newFileContent: `interface I { x: { readonly [K in keyof X]: X[K] }; } class C implements I { x: { readonly [K in keyof Y]: Y[K]; }; }`, });