import { CollectionName, DBChanges, DBEntity, KVStoreTransaction, KVStoreOrTransaction, EntityStore, ApplyChangesOptions } from './types.js';
export declare class EntityDataStore implements EntityStore {
    storagePrefix: string[];
    constructor(storagePrefix?: string[]);
    getEntity(storage: KVStoreOrTransaction, collection: string, id: string): Promise<DBEntity | undefined>;
    getCollectionStats(storage: KVStoreOrTransaction, knownCollections: CollectionName[] | undefined): Promise<Map<string, number>>;
    applyChanges(tx: KVStoreTransaction, changes: DBChanges, options: ApplyChangesOptions): Promise<DBChanges>;
    getEntitiesInCollection(storage: KVStoreOrTransaction, collection: CollectionName): AsyncIterable<DBEntity>;
}
/**
 * This will apply the sets to the current value of the entity
 * without mutating the original and will return a filtered down set object
 * based on what was actually overwritten
 * @param curr current value of the entity
 * @param sets sets to apply
 *
 * @returns [new value, sets that were applied]
 */
export declare function applyChange<T extends Record<string, any> | undefined>(curr: T, sets: Partial<NonNullable<T>>, options?: {
    clone?: boolean;
}): {
    prev: T;
    next: NonNullable<T>;
    change: Partial<NonNullable<T>>;
};