/**
 * Onboarding flow — first-contact composition.
 */
import type { WhatsAppClient, ContactCard } from '../client/whatsapp.js';
export interface OnboardingOptions {
    client: WhatsAppClient;
    contact?: ContactCard | null;
    welcomeBody?: string | ((args: {
        name: string | null;
    }) => string);
    optInButtonId?: string;
    optInButtonTitle?: string;
    helpText?: string | ((args: {
        name: string | null;
    }) => string) | null;
    delayBetweenMs?: number;
}
export declare class OnboardingFlow {
    readonly client: WhatsAppClient;
    readonly contact: ContactCard | null;
    readonly welcomeBody: string | ((args: {
        name: string | null;
    }) => string);
    readonly optInButtonId: string;
    readonly optInButtonTitle: string;
    readonly helpText: string | ((args: {
        name: string | null;
    }) => string) | null;
    readonly delayBetweenMs: number;
    constructor({ client, contact, welcomeBody, optInButtonId, optInButtonTitle, helpText, delayBetweenMs, }: OnboardingOptions);
    greet(whatsapp: string, { name }?: {
        name?: string | null;
    }): Promise<void>;
    private maybeDelay;
}
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