import type { UmbValueSummaryApi } from '../extensions/value-summary-api.interface.js';
import type { UmbControllerHost } from '../../../../libs/controller-api/index.js';
import { UmbControllerBase } from '../../../../libs/class-api/index.js';
import type { Observable } from '../../../../external/rxjs/index.js';
/**
 * Abstract base class for value summary APIs.
 * Bridges the coordinator to the element.
 *
 * Receives `valueType` and `rawValue` via apiProps from the wrapper element.
 *
 * Extend this class to create custom value summary APIs.
 */
export declare abstract class UmbValueSummaryApiBase<ValueType> extends UmbControllerBase implements UmbValueSummaryApi<ValueType> {
    #private;
    readonly value: Observable<ValueType | undefined>;
    constructor(host: UmbControllerHost);
    set valueType(v: string | undefined);
    set rawValue(v: ValueType | undefined);
}