import type { CloneExtraInfo, CloneFilter, CloneOptions, INamespace, UAProperty, UAVariable } from "node-opcua-address-space-base";
import { type LocalizedText, type LocalizedTextLike } from "node-opcua-data-model";
import { DataType } from "node-opcua-variant";
import type { AddTwoStateDiscreteOptions } from "../../api/address_space_ts.js";
import type { UATwoStateDiscreteEx } from "../../api/interfaces/data_access/ua_two_state_discrete_ex.js";
import type { ISetStateOptions } from "../../api/interfaces/i_set_state_options.js";
import { UAVariableImplT } from "../ua_variable_impl.js";
/** @internal */
export declare class UATwoStateDiscreteImplBase extends UAVariableImplT<boolean, DataType.Boolean> implements UATwoStateDiscreteEx {
    /**
     * Properties installed as child nodes by the address space rather than assigned by this
     * constructor - hence `declare`, which emits nothing.
     */
    readonly falseState: UAProperty<LocalizedText, DataType.LocalizedText>;
    readonly trueState: UAProperty<LocalizedText, DataType.LocalizedText>;
    _post_initialize(): void;
    setValue(value: boolean | LocalizedTextLike, options?: ISetStateOptions): void;
    getValue(): boolean;
    getValueAsString(): string;
    getTrueStateAsString(): string;
    getFalseStateAsString(): string;
    clone(options1: CloneOptions, optionalFilter?: CloneFilter, extraInfo?: CloneExtraInfo): UAVariable;
}
/** @internal */
export type UATwoStateDiscreteImpl = UATwoStateDiscreteImplBase;
/** @internal */
export declare const UATwoStateDiscreteImpl: typeof UATwoStateDiscreteImplBase;
export declare function promoteToTwoStateDiscrete(node: UAVariable): UATwoStateDiscreteEx;
/** @internal */
export declare function _addTwoStateDiscrete(namespace: INamespace, options: AddTwoStateDiscreteOptions): UATwoStateDiscreteEx;