import type { Reader, Writer } from "../stream";
import { type IetfVersion } from "./version";
export interface GroupFlags {
    hasExtensions: boolean;
    hasSubgroup: boolean;
    hasSubgroupObject: boolean;
    hasEnd: boolean;
    hasPriority: boolean;
}
/**
 * STREAM_HEADER_SUBGROUP from moq-transport spec.
 * Used for stream-per-group delivery mode.
 */
export declare class Group {
    flags: GroupFlags;
    trackAlias: bigint;
    groupId: number;
    subGroupId: number;
    publisherPriority: number;
    constructor({ trackAlias, groupId, subGroupId, publisherPriority, flags, }: {
        trackAlias: bigint;
        groupId: number;
        subGroupId: number;
        publisherPriority: number;
        flags: GroupFlags;
    });
    encode(w: Writer, version: IetfVersion): Promise<void>;
    static decode(r: Reader, version: IetfVersion): Promise<Group>;
}
export declare class Frame {
    payload?: Uint8Array;
    constructor({ payload }?: {
        payload?: Uint8Array;
    });
    encode(w: Writer, flags: GroupFlags): Promise<void>;
    static decode(r: Reader, flags: GroupFlags): Promise<Frame>;
}
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