How to use someClass.android.ts and someClass.ios.ts without errors - nativescript

Question

I'm using nativescript angular. I have a class called SomeClass that access the native API of iOS and Android separately.
I've written two files:
someclass.android.ts
export class SomeClass {
someFunction() {
if(isAndroid) {
// do some android specific code
}
}
}
someclass.ios.ts
export class SomeClass {
someFunction() {
if(isIOS) {
// do some ios specific code
}
}
}
Now, in app.component.ts, I'm using SomeClass like this:
import { SomeClass } from './../shared-code/someclass';
without .android.ts or .ios.ts, to enable nativescript to pick the right file depending on the running platform.
and then in the code, I user SomeFunction like this:
...
const someClass = new SomeClass();
someClass.someFunction();
...
With this setting, everything works perfectly on both iOS and Android, but I get the following error
error TS2307: Cannot find module './../shared-code/someclass'.
Do you have any idea how to tell nativescript/tslint to take into account the .android and .ios files and not to display this error?
Thanks

Answer 1

Here's the solution:
Alongside 'someclass.ios.ts' and 'someclass.android.ts', create a definitions file and name it 'someclass.d.ts' (Not index.d.ts). No need to put the files in a separate folder.
In someclass.d.ts, export declare the class like this:
export declare class SomeClass {
/**
* someFunction, is a function that does this and that (description)
*/
someFunction(): void;
}
Then, you can use this from another file like this:
In app.component.ts:
import { SomeClass } from './../shared-code/someclass';
Remember to use /someclass without any extensions.
This would solve build and tslint errors.