theme-lib/lib/components/toastr/toastr.module.d.ts

This is a simple example Angular Library published to npm.

import { ModuleWithProviders } from '@angular/core';
import { NbToastrConfig } from './toastr-config';
export declare class NbToastrModule {
    static forRoot(toastrConfig?: Partial<NbToastrConfig>): ModuleWithProviders;
}