/**
 * @module botbuilder
 */
/**
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License.
 */
import { TranscriptStore, PagedResult, Transcript } from "./transcriptLogger";
import { Activity } from "botbuilder-core";
/**
 * The memory transcript store stores transcripts in volatile memory in a Map.
 * Because this uses an unbounded volitile dictionary this should only be used for unit tests or non-production environments.
 */
export declare class MemoryTranscriptStore implements TranscriptStore {
    private static readonly PageSize;
    private channels;
    /**
     * Log an activity to the transcript.
     * @param activity Activity to log.
     */
    logActivity(activity: Activity): void | Promise<void>;
    /**
     * Get activities from the memory transcript store
     * @param channelId Channel Id.
     * @param conversationId Conversation Id.
     * @param continuationToken Continuatuation token to page through results.
     * @param startDate Earliest time to include.
     */
    getTranscriptActivities(channelId: string, conversationId: string, continuationToken?: string, startDate?: Date): Promise<PagedResult<Activity>>;
    /**
     * List conversations in the channelId.
     * @param channelId Channel Id.
     * @param continuationToken Continuatuation token to page through results.
     */
    listTranscripts(channelId: string, continuationToken?: string): Promise<PagedResult<Transcript>>;
    /**
     * Delete a specific conversation and all of it's activities.
     * @param channelId Channel Id where conversation took place.
     * @param conversationId Id of the conversation to delete.
     */
    deleteTranscript(channelId: string, conversationId: string): Promise<void>;
}