import type { ChannelAccount, ConversationReference } from '@microsoft/agents-activity';
/**
 * Well-known Teams service URLs for proactive messaging.
 *
 * Use only when the incoming `serviceUrl` from a real conversation is unavailable.
 * Once you have received a `serviceUrl` from a real turn, cache and prefer that value.
 */
export declare const TeamsServiceEndpoints: {
    /** Standard public cloud Teams endpoint. */
    readonly publicGlobal: "https://smba.trafficmanager.net/teams/";
    /** US Government Community Cloud (GCC). */
    readonly gcc: "https://smba.infra.gcc.teams.microsoft.com/teams";
    /** US Government Community Cloud High (GCC-High). */
    readonly gccHigh: "https://smba.infra.gov.teams.microsoft.us/teams";
    /** US Department of Defense (DoD). */
    readonly dod: "https://smba.infra.dod.teams.microsoft.us/teams";
};
/**
 * Fluent builder for `ConversationReference`.
 */
export declare class ConversationReferenceBuilder {
    private readonly _channelId;
    private _serviceUrl;
    private _agent;
    private _user?;
    private _conversationId?;
    private _activityId?;
    private _locale?;
    private constructor();
    /**
     * Creates a new builder seeded with the agent identity and channel.
     * On Teams, the agent id is prefixed with `28:` automatically.
     * @param agentClientId The agent's client (app) ID.
     * @param channelId The target channel (e.g. `'msteams'`, `'webchat'`).
     * @param serviceUrl Optional override. If omitted, `build()` fills in the
     *   channel default via `serviceUrlForChannel()`.
     */
    static create(agentClientId: string, channelId: string, serviceUrl?: string): ConversationReferenceBuilder;
    /**
     * Returns the default service URL for a channel.
     * Teams returns the public global endpoint; all other channels use the
     * `https://{channelId}.botframework.com/` pattern (matching C# behavior).
     */
    static serviceUrlForChannel(channelId: string): string;
    /** Sets `reference.user` from an id + optional name. Role defaults to `RoleTypes.User`. */
    withUser(userId: string, userName?: string): this;
    /** Sets `reference.user` from a full `ChannelAccount`. */
    withUser(account: ChannelAccount): this;
    /** Sets `reference.agent` from an id + optional name. Role defaults to `RoleTypes.Agent`. On Teams, id is prefixed with `28:`. */
    withAgent(agentClientId: string, agentName?: string): this;
    /** Sets `reference.agent` from a full `ChannelAccount`. */
    withAgent(account: ChannelAccount): this;
    /** Sets `reference.serviceUrl`. */
    withServiceUrl(serviceUrl: string): this;
    /** Sets `reference.conversation.id`. */
    withConversationId(id: string): this;
    /** Sets `reference.activityId`. */
    withActivityId(activityId: string): this;
    /** Sets `reference.locale`. */
    withLocale(locale: string): this;
    /** Builds and returns the `ConversationReference`. */
    build(): ConversationReference;
    /**
     * Builds a `ChannelAccount` for the agent, applying the Teams `28:` id prefix
     * when the channel is `msteams`.
     */
    private static agentForChannel;
}