import type { Context } from '../context.js';
export interface CompressionOptions {
    level?: number;
    threshold?: number;
    algorithms?: ('gzip' | 'deflate' | 'br')[];
    filter?: (contentType: string) => boolean;
}
export declare function compressionPlugin(options?: CompressionOptions): (ctx: Context, next: () => Promise<any>) => Promise<void>;
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