import { PipeTransform } from "./pipe-transform";
export interface DefaultValuePipeOptions {
    ignoreNull?: boolean;
    ignoreUndefined?: boolean;
    ignoreEmptyString?: boolean;
    ignoreNaN?: boolean;
}
export declare class DefaultValuePipe<T = any, R = any> implements PipeTransform<T, T | R> {
    #private;
    private readonly defaultValue;
    constructor(defaultValue: R, options?: DefaultValuePipeOptions);
    transform({ value }: {
        value: any;
    }): T | R;
}