What does --routing-scope stands for in Angular CLI

Question

In angular CLI when creating module we can add --routing-scope as a parameter.

ng g m dashboard --routing-scope something-here --routing

when using this command I get error:

Schematic input does not validate against the 
Schema: {"routingScope":"dashboard","routing":false,"spec":true,"flat":false,"commonModule":true}
Errors: Data path ".routingScope" should be equal to one of the allowed values.

But what are the allowed values?

This parameter is not described in the docs.

Answer 1

After some digging, I found this: schema.json, the schema.json for the CLI. Lots of good stuff in this.

According to this, the valid values for --routing-scope are either Child, or Root. Casing matters. The default is Child.

An odd thing is, the code that gets generated looks exactly the same no matter what value I use. They both look like what is below after running ng g m testing --routing-scope Child or ng g m testing --routing-scope Root

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

@NgModule({
  imports: [
    CommonModule
  ],
  declarations: []
})
export class TestingModule { }

Further digging shows that the value is used when code is generated to build the forRoot or forChild function in module imports.