@nestjs/testing/interfaces/override-by.interface.d.ts

import { TestingModuleBuilder } from '../testing-module.builder';
import { OverrideByFactoryOptions } from './override-by-factory-options.interface';
export interface OverrideBy {
    useValue: (value: any) => TestingModuleBuilder;
    useFactory: (options: OverrideByFactoryOptions) => TestingModuleBuilder;
    useClass: (metatype: any) => TestingModuleBuilder;
}