import { type Wing } from '../../wing/index.js';
export interface UploadFile {
    readonly name: string;
    readonly size: number;
    readonly type: string;
}
export interface UploadItem {
    readonly kind: 'image' | 'file' | 'text';
    readonly uri: string;
    readonly name: string;
}
export declare function extensionOf(name: string): string;
export declare function formatBytes(bytes: number): string;
export interface UploadLimits {
    readonly extensions?: readonly string[];
    readonly maxFileSize?: number;
    readonly maxTotalSize?: number;
}
export interface UploadReject {
    readonly code: string;
    readonly file: UploadFile | null;
    readonly max?: string;
}
export declare function acceptFiles<T extends UploadFile>(files: readonly T[], limits: UploadLimits, reject?: (problem: UploadReject) => void): T[];
export declare function isImageFile(file: UploadFile): boolean;
export interface CommitOptions {
    readonly allowLocalUrls?: boolean;
}
export declare function makeUploadWing(options?: CommitOptions): Wing;
export declare const uploadWing: Wing;
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