import { HDict, HNum, HStr, HVal } from 'haystack-core';
/**
 * A dict resolvable to an HVal that represents server side state.
 */
export interface ResolvableDict extends HDict {
    meta: ResolvableDictMeta;
}
/**
 * The presence of this meta indicates that the dict resolvable to an HVal that represents server side state.
 */
export interface ResolvableDictMeta extends HDict {
    /**
     * Resolve type that should be applied: @see ResolveType
     */
    resolveType: HStr & {
        value: ResolveType;
    };
    /**
     * Indicates the interval of update for the subscription in seconds. Default is 5 seconds.
     */
    subscriptionPollTime?: HNum;
    /**
     * If resolveType is "tag" this is mandatory and indicates what tag that should be read.
     */
    readTag?: HStr;
    /**
     * If resolveType is "tag" this is mandatory and indicates what tag that should be written. Defaults to readTag value if not defined.
     */
    writeTag?: HStr;
    /**
     * If resolveType is "point" this is the level used by default when writing. If not specified the lowest priority level will be used.
     * @see https://project-haystack.org/doc/docHaystack/Ops#pointWrite
     */
    writeLevel?: HNum;
    /**
     * If resolveType is "point" this is the optional write duration.
     * @see https://project-haystack.org/doc/docHaystack/Ops#pointWrite
     */
    writeDuration?: HNum;
    /**
     * If resolveType is "point" this is the optional who metadata.
     * @see https://project-haystack.org/doc/docHaystack/Ops#pointWrite
     */
    writeWho?: HStr;
}
/**
 * Either a ResolvableDict or the Val directly
 */
export type Resolvable<Val extends HVal> = Val | ResolvableDict;
export declare function isResolvableDict(value: unknown): value is ResolvableDict;
/**
 * Accepted ResolveType options.
 */
export type ResolveType = 'point' | 'tag';
export declare function isResolvablePoint(value: unknown): value is ResolvableDict;
export declare function isResolvableTag(value: unknown): value is ResolvableDict & {
    meta: {
        readTag: HStr;
    };
};