import type { AssetEmitter, AssetLike } from "@awboost/cfn-template-builder/builder";
import type { AssetEmitterProgress, SchedulerFunction } from "@awboost/cfn-template-builder/emitter";
import { S3Client, type S3ClientConfig } from "@aws-sdk/client-s3";
import { TypedEventEmitterBase } from "../internal/events.js";
export type S3AssetEmitterOptions = {
    bucket: string;
    objectKeyPrefix?: string;
    s3?: S3Client;
    s3Config?: S3ClientConfig;
    scheduler?: SchedulerFunction;
};
/**
 * Class which can emit assets to the file system.
 */
export declare class S3AssetEmitter extends TypedEventEmitterBase<{
    progress(event: AssetEmitterProgress): void;
}> implements AssetEmitter {
    private readonly options;
    private readonly results;
    private readonly s3;
    constructor(options: S3AssetEmitterOptions);
    /**
     * Add an asset to the output.
     */
    addAsset(asset: AssetLike): void;
    /**
     * Wait for all assets to be emitted.
     */
    done(): Promise<void>;
    private emitAsset;
}
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