export declare const transportFilter: {
    /** Set allowed transports for a project */
    setProjectTransports(projectName: string, transports: string[]): void;
    /** Remove transport config for a project (falls back to global) */
    removeProjectTransports(projectName: string): void;
    /** Check if a transport is allowed for a project */
    isTransportAllowed(projectName: string, transport: string): boolean;
    /** Get allowed transports for a project (undefined = all global) */
    getProjectTransports(projectName: string): string[] | undefined;
    /** List all projects with custom transport configs */
    listConfiguredProjects(): string[];
    /** Clear all configs */
    clear(): void;
    /** Get count of configured projects */
    readonly size: number;
};