/**
 * Resolve the realtime plugin's on-disk install directory (the one containing
 * its package.json), or null when no install can be found.
 */
export declare function resolveRealtimePluginInstallPath(home: string): string | null;
/**
 * The realtime plugin's actually-installed version, read from the on-disk
 * package.json (ground truth). Falls back to the version recorded in
 * installs.json only when no on-disk install resolves. Returns null when the
 * plugin is neither installed nor registered.
 */
export declare function readInstalledRealtimePluginVersion(home: string): string | null;
