Dropper Pattern in NestJS

dropper.ts

import {Module, Inject, Injectable, ConfigurableModuleBuilder} from '@nestjs/common'

const {ConfigurableModuleClass, MODULE_OPTIONS_TOKEN} = new ConfigurableModuleBuilder<unknown>().build()

@Injectable()
class DropperService<T> {
  constructor(@Inject(MODULE_OPTIONS_TOKEN) private readonly value: T) {}

  drop(): T {
    return this.value
  }
}

@Module({
  providers: [DropperService],
  exports: [DropperService]
})
export class DropperModule extends ConfigurableModuleClass {}