import { Asset, CreateAssetInput } from '@pickerjs/common/lib/generated-types';
import { ConfigService } from '../../config';
import { RequestContext } from '../../api';
/**
 * @description
 * 包含 {@link Asset} 实体的相关业务方法
 */
export declare class AssetService {
    private configService;
    private permittedMimeTypes;
    constructor(configService: ConfigService);
    createFromBuffer(ctx: RequestContext, data: any): Promise<Asset>;
    create(ctx: RequestContext, input: CreateAssetInput): Promise<Asset>;
    private createAssetInternal;
    private getDimensions;
    private getSourceFileName;
    private getPreviewFileName;
    /**
     * 生成资源的唯一标识
     * @param inputFileName
     * @param generateNameFn
     */
    private generateUniqueName;
}