/**
 * Hot-reload state transfer helpers.
 *
 * Copying user-defined state from the old photon instance to the freshly
 * loaded one, while letting the loader's fresh values win for fields it
 * owns. Broken out into its own module so tests can import it without
 * booting the daemon entrypoint.
 */
/**
 * Loader-injected fields that must NOT be copied from the old instance
 * to the new instance during hot-reload. The fresh instance already
 * carries the latest schema and backing for these fields (reloaded from
 * source + disk); overwriting with stale values keeps the daemon serving
 * the pre-reload settings shape until a full restart.
 *
 * Function fields are filtered out by the `typeof value !== 'function'`
 * check in the copy loop, so we only list non-function injected fields.
 */
export declare const LOADER_INJECTED_SKIP: Set<string>;
/**
 * Copy user-defined state from `oldInstance` to `newInstance`. Skips
 * functions (re-wired by the loader), the constructor marker, and
 * loader-injected settings fields (fresh-instance values win). Swallows
 * per-field write errors so read-only proxies don't abort the transfer.
 */
export declare function transferHotReloadState(oldInstance: Record<string, unknown>, newInstance: Record<string, unknown>): void;
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