import { AuthoringType, ELEMENT_TYPE, LoggerService, RenderingContext } from '@acoustic-content-sdk/api';
import { AccessorType } from '@acoustic-content-sdk/edit-api';
import { Observable, OperatorFunction, SchedulerLike, UnaryFunction } from 'rxjs';
/**
 * Resolves the element type, either directly from the element or from the authoring type
 *
 * @param aAuthoringTypes$ - the set of available authoring types
 * @param aLogSvc - logger service
 * @param aScheduler - optional scheduler
 *
 * @returns the resolved type or undefined if the type could not be determined
 */
export declare function rxElementType(aTypeResolver: UnaryFunction<string, Observable<AuthoringType>>, aLogSvc?: LoggerService, aScheduler?: SchedulerLike): UnaryFunction<AccessorType, OperatorFunction<RenderingContext, ELEMENT_TYPE>>;