import type { XMPPClient, XMPPCredentials, XMPPOptions, XMPPUserAgent } from './xmpp';
export declare function createOnAuthenticate(credentials: XMPPCredentials, userAgent: XMPPUserAgent): (...args: unknown[]) => Promise<void>;
export declare function getMechanism(mechanisms: string[], entity: XMPPClient, options?: XMPPOptions): string;
export declare function getDomain(service: string): string;
export declare function setupIfAvailable(module?: (...args: any[]) => any, ...args: unknown[]): unknown;
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