import type { File } from '@nest-lab/fastify-multer'; import { ApiProperty } from '@nestjs/swagger'; export class UploadSingleFileDto { @ApiProperty({ type: 'string', format: 'binary', nullable: false }) file: File; } export class UploadMultipleFileDto { @ApiProperty({ required: true, type: 'array', items: { type: 'string', format: 'binary', }, }) files: File[]; }