/** The legacy service name consumers inject. */
export declare const CONVERSATION_EVENTS_SERVICE = "conversationEvents";
/** The dsh ≥ 0.1.2 service owning the definition registry. */
export declare const UI_CONVERSATION_SERVICE = "uiConversation";
/** Minimal cordis client context surface this bridge touches. */
export interface ConversationCompatContext {
    get?(name: string): unknown;
    provide?(name: string, value: unknown): unknown;
    inject?(inject: string[], callback: (ctx: ConversationCompatContext) => unknown): unknown;
}
/**
 * Provide the legacy `conversationEvents` service when the host lacks it.
 *
 * @param ctx - the client plugin's cordis context.
 * @returns true when the bridge was armed (legacy name absent and inject
 *   available), false when the host already provides the service or the
 *   context cannot order provision.
 */
export declare function installConversationEventsCompat(ctx: ConversationCompatContext): boolean;