I resolved a similar issue in my getClass
function like this:
import { ApiGateway } from './api-gateway.class';
import { AppSync } from './app-sync.class';
import { Cognito } from './cognito.class';
export type stackInstances = typeof ApiGateway | typeof AppSync | typeof Cognito
export const classes = {
ApiGateway,
AppSync,
Cognito
} as {
[key: string]: stackInstances
};
export function getClass(name: string) {
return classes[name];
}
Typing my classes
const with my union type made typescript happy and it makes sense to me.