export type BridgeError = Error;
/**
 * Active panel runtime, surfaced for capability + diagnostic messages.
 *   - 'http-uxp'        Modern UXP panel (Premiere 25.6+).
 *   - 'http-cep'        Legacy CEP panel — supported by Adobe through Sept 2026.
 *   - 'osascript-cep'   ExtendScript via osascript (no panel installed). macOS-only.
 */
export type PremiereTransportKind = "http-uxp" | "http-cep" | "osascript-cep";
export declare class PremiereBridge {
    private transport?;
    private transportProbe?;
    /**
     * Cheap pre-flight reachability check. Async because it probes the panel.
     * Safe to call from capabilities() — also surfaces the panel runtime kind so
     * the adapter can include it in HostCapabilities without needing to issue a
     * full RPC first.
     */
    static checkReachable(): Promise<{
        ok: true;
        transport: PremiereTransportKind;
    } | {
        ok: false;
        reason: string;
    }>;
    /**
     * What flavour of bridge is currently in use. Returns undefined before the
     * first call (transport hasn't been resolved yet).
     */
    getTransportKind(): PremiereTransportKind | undefined;
    private getTransport;
    call<T = unknown>(method: string, params?: Record<string, unknown>, opts?: {
        signal?: AbortSignal;
    }): Promise<T>;
    private callViaOsascript;
    private runOsascript;
    shutdown(): void;
}
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