import { EnsureFunction, EnsureBaseOptions, EnsureIsOptional, EnsureDefault } from '../ensure'; type PlainObjectEnsureOptions = {allowedKeys?: string[], ensurePropertyValue?: EnsureFunction}; declare function ensurePlainObject(value: any, options?: PlainObjectEnsureOptions & EnsureBaseOptions): object; declare function ensurePlainObject(value: any, options?: PlainObjectEnsureOptions & EnsureBaseOptions & EnsureIsOptional): object | null; declare function ensurePlainObject(value: any, options?: PlainObjectEnsureOptions & EnsureBaseOptions & EnsureIsOptional & EnsureDefault): object; export default ensurePlainObject;