/** Frame type registry for wire versions 1 and 2 (SPEC.md §1.2). */
export declare const FrameType: {
    readonly END: 0;
    readonly REQ_HEADER: 1;
    readonly PUSH_COMMIT: 2;
    readonly PULL_HEADER: 3;
    readonly SUBSCRIPTION: 4;
    readonly RESP_HEADER: 16;
    readonly PUSH_RESULT: 17;
    readonly SUB_START: 18;
    readonly COMMIT: 19;
    readonly SEGMENT_REF: 20;
    readonly SEGMENT_INLINE: 21;
    readonly SUB_END: 22;
    readonly LEASE: 25;
    readonly PUSH_RESULT_DETAILS: 27;
    readonly ERROR: 31;
};
export type FrameTypeName = keyof typeof FrameType;
/** Known request frame types (excluding END). */
export declare const REQUEST_FRAME_TYPES: ReadonlySet<number>;
/** Known response frame types (excluding END). */
export declare const RESPONSE_FRAME_TYPES: ReadonlySet<number>;
/** Every frame type with a defined layout in wire versions 1 and 2. */
export declare const KNOWN_FRAME_TYPES: ReadonlySet<number>;