import type { ArtifactCommitInput, ArtifactPresignInput, ArtifactPresignResult, ArtifactSignResult, ArtifactStore, ArtifactSummary, ArtifactWriteInput, ArtifactWriteResult } from "./tools/artifacts.js";
/** The broker surface the store needs (RunnerControlClient satisfies it). */
export interface ArtifactBrokerTransport {
    writeArtifact(input: ArtifactWriteInput): Promise<ArtifactWriteResult>;
    presignArtifact(input: ArtifactPresignInput): Promise<ArtifactPresignResult>;
    uploadBytes(url: string, headers: Record<string, string>, body: Uint8Array): Promise<void>;
    commitArtifact(input: ArtifactCommitInput): Promise<ArtifactWriteResult>;
    listArtifacts(): Promise<ArtifactSummary[]>;
    signArtifactUrl(artifactId: string, ttlSeconds: number): Promise<ArtifactSignResult>;
}
export declare class BrokerArtifactStore implements ArtifactStore {
    private readonly broker;
    constructor(broker: ArtifactBrokerTransport);
    write(input: ArtifactWriteInput): Promise<ArtifactWriteResult>;
    list(): Promise<ArtifactSummary[]>;
    signedUrl(artifactId: string, ttlSeconds: number): Promise<ArtifactSignResult>;
}