import { Word, Entity, Intent, Segment } from './types';
/**
 * A high level API for automatic speech recognition (ASR) and natural language understanding (NLU) results. Results will accumulate in Segment for the duration of the an utterance.
 * @internal
 */
export declare class SegmentState {
    /**
     * Audio context id for the utterance. Unique for the processed audio chunk between start and stop calls.
     * One utterance may produce one or more segments.
     */
    contextId: string;
    /**
     * 0-based segment index within the audio context. Together with {@link contextId} forms an unique identifier for the segment.
     */
    id: number;
    /**
     * True when the segment will not be changed any more
     */
    isFinalized: boolean;
    /**
     * Detected words in the segment
     */
    words: Word[];
    /**
     * Detected entities in the segment
     */
    entities: Map<string, Entity>;
    /**
     * Detected intent for the segment
     */
    intent: Intent;
    /**
     * @param contextId - Audio context id
     * @param segmentIndex - 0-based segment index within the audio context
     * @internal
     */
    constructor(contextId: string, segmentIndex: number);
    toSegment(): Segment;
    toString(): string;
    /**
     * @param words - changed words
     * @returns updated SegmentState
     * @internal
     */
    updateTranscript(words: Word[]): SegmentState;
    /**
     * @param entities - changed entities
     * @returns updated SegmentState
     * @internal
     */
    updateEntities(entities: Entity[]): SegmentState;
    /**
     * @param intent - changed intent
     * @returns updated SegmentState
     * @internal
     */
    updateIntent(intent: Intent): SegmentState;
    /**
     * @returns SegmentState with final flags set
     * @internal
     */
    finalize(): SegmentState;
    private entityMapKey;
}