1declare module "subfolder/b" { 2 export class B { 3 } 4} 5declare module "a" { 6 import { B } from "subfolder/b"; 7 export class A { 8 b: B; 9 } 10} 11declare module "subfolder/c" { 12 import { A } from "a"; 13 export class C { 14 a: A; 15 } 16} 17