How do you restrict provider scope to a module?

It is possible to restrict service provider scope to a specific module instead making available to entire application. There are two possible ways to do it.

1. Using providedIn in service:

import { Injectable } from '@angular/core';
import { SomeModule } from './some.module';

@Injectable({
providedIn: SomeModule,
})
export class SomeService {
}

2. Declare provider for the service in module:

import { NgModule } from '@angular/core';

import { SomeService } from './some.service';

@NgModule({
providers: [SomeService],
})
export class SomeModule {
}