import type { GuidString, Id64Array, Id64String } from "@itwin/core-bentley";
import type { LimitingECSqlQueryExecutor } from "@itwin/presentation-hierarchies";
/** @internal */
export declare class IModelContentTreeIdsCache {
    #private;
    constructor(queryExecutor: LimitingECSqlQueryExecutor, componentId?: GuidString);
    private querySubjects;
    private queryModels;
    private getSubjectInfos;
    /** Returns ECInstanceIDs of Subjects that either have direct Model or at least one child Subject with a Model. */
    getParentSubjectIds(): Promise<Id64String[]>;
    /**
     * Returns child subjects of the specified parent subjects as they're displayed in the hierarchy - taking into
     * account `hideInHierarchy` flag.
     */
    getChildSubjectIds(parentSubjectIds: Id64String[]): Promise<Id64String[]>;
    /** Returns ECInstanceIDs of Models under specific parent Subjects as they are displayed in the hierarchy. */
    getChildSubjectModelIds(parentSubjectIds: Id64String[]): Promise<Id64String[]>;
    private queryModelCategories;
    private getModelInfos;
    getModelCategories(modelIds: Id64String[]): Promise<Id64Array>;
}
//# sourceMappingURL=IModelContentTreeIdsCache.d.ts.map