export interface SharedTokenRingDescriptor {
    readonly buffer: SharedArrayBuffer | ArrayBuffer;
    readonly headerOffset: number;
    readonly bodyOffset: number;
    readonly bodyCapacity: number;
}
export type SharedTokenRingRecordConsumer = (streamId: number, sequenceStart: number, frameCount: number, byteCount: number, text: string) => void;
export declare class SharedTokenRingReader {
    private readonly header;
    private readonly body;
    private readonly isShared;
    private readonly decoder;
    private payloadScratch;
    private lastDropCount;
    constructor(descriptor: SharedTokenRingDescriptor);
    drain(consume: SharedTokenRingRecordConsumer, maxRecords?: number): number;
    consumeDropDelta(): number;
    capacity(): number;
    private loadHeader;
    private storeHeader;
    private readU32;
    private readBytes;
    private copySharedBytes;
}