export interface NextAsyncProcessor<TInput, TOutput> {
    (input: TInput): Promise<TOutput>;
}
export interface AsyncProcessor<TInput, TOutput = TInput> {
    (next: NextAsyncProcessor<TInput, TOutput>): NextAsyncProcessor<TInput, TOutput>;
}
export interface NextSyncProcessor<TInput, TOutput = TInput> {
    (input: TInput): TOutput;
}
export interface SyncProcessor<TInput, TOutput = TInput> {
    (next: NextSyncProcessor<TInput, TOutput>): NextSyncProcessor<TInput, TOutput>;
}
export declare function composeAsync<TInput = unknown, TOutput = TInput>(functions?: Array<AsyncProcessor<TInput, TOutput>>): NextAsyncProcessor<TInput, TOutput>;
export declare function composeSync<TInput = unknown, TOutput = TInput>(functions?: Array<SyncProcessor<TInput, TOutput>>): NextSyncProcessor<TInput, TOutput>;