/**
 * @param {import('#types').Transport} transport
 * @param {import('#types').StageConfig} stage
 * @returns {Promise<import('#types').RuntimeState|null>}
 */
export function readRuntimeState(transport: import("#types").Transport, stage: import("#types").StageConfig): Promise<import("#types").RuntimeState | null>;
/**
 * @param {import('#types').Transport} transport
 * @param {import('#types').StageConfig} stage
 * @param {import('#types').RuntimeRelease} active
 * @param {{retain?: import('#types').RuntimeRelease[], referencedReleaseIds?: string[]}} [opts]
 * @returns {Promise<import('#types').RuntimeState>}
 */
export function writeRuntimeState(transport: import("#types").Transport, stage: import("#types").StageConfig, active: import("#types").RuntimeRelease, { retain, referencedReleaseIds }?: {
    retain?: import("#types").RuntimeRelease[];
    referencedReleaseIds?: string[];
}): Promise<import("#types").RuntimeState>;
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