type R2ApiJsonConfig = {
    bucket: string;
    endpoint: string;
    accessKeyId: string;
    secretAccessKey: string;
    prefix: string;
};
type SaveJsonObjectToR2Input = {
    key: string;
    body: string;
};
type SaveJsonObjectToR2Result = {
    bucket: string;
    key: string;
    size: number;
    etag?: string;
};
export declare function getR2ApiJsonConfig(env?: NodeJS.ProcessEnv): R2ApiJsonConfig | undefined;
export declare function getR2ApiJsonKey(apiJsonUuid: string, prefix: string): string;
export declare function loadApiJsonFromR2(apiJsonUuid: string): Promise<string | undefined>;
export declare function saveJsonObjectToR2(input: SaveJsonObjectToR2Input): Promise<SaveJsonObjectToR2Result | undefined>;
export {};