import { EntityMetadata } from './metadata';
import { BackendProvider, BackendProviderConfig, Filter, PaginationOptions } from './types';
export declare class BaseDataProvider<D> implements BackendProvider<D> {
    readonly backendId: string;
    constructor(backendId: string);
    backendProviderConfig?: BackendProviderConfig;
    find(filter: Filter<D>, pagination?: PaginationOptions): Promise<D[]>;
    findOne(filter: Filter<D>, entityMetadata?: EntityMetadata): Promise<D | null>;
    findByRelatedId(entity: any, relatedField: string, relatedIds: readonly string[], filter?: Filter<D>): Promise<D[]>;
    updateOne(id: string | number, updateArgs: Partial<D & {
        version?: number;
    }>): Promise<D>;
    updateMany(updateItems: Partial<D>[]): Promise<D[]>;
    createOrUpdateMany(items: Partial<D>[]): Promise<D[]>;
    createOne(createArgs: Partial<D>): Promise<D>;
    createMany(createItems: Partial<D>[]): Promise<D[]>;
    deleteOne(filter: Filter<D>): Promise<boolean>;
    deleteMany(filter: Filter<D>): Promise<boolean>;
}