import { DynamicValue, Listener, Unsubscriber } from "./DynamicValue";
/**
 * A [[DynamicValue]] reducer returning the truthiness of the input
 *
 * @example
 * ```javascript
 * new BooleanizedValue(new TextValue("")).onValue(value=>
 *  value //false
 * )
 * ```
 */
export declare class BooleanizedValue implements DynamicValue<boolean> {
    __variant__: string;
    input: DynamicValue<any>;
    name: string | void;
    constructor(input: DynamicValue<any>, name?: string);
    onValue(listener: Listener<boolean>): Unsubscriber;
    getValue(): Promise<boolean>;
    static fromJSON(json: {
        input: any;
        name?: string;
    }): any;
}