declare const PHONE_TARGET: "phone";
declare const USER_ID_TARGET: "user_id";
export interface PhoneTarget {
    readonly kind: typeof PHONE_TARGET;
    readonly value: string;
}
export interface UserIdTarget {
    readonly kind: typeof USER_ID_TARGET;
    readonly value: string;
}
export type RecipientTarget = PhoneTarget | UserIdTarget;
export declare function Phone(phoneNumber: string): PhoneTarget;
export declare function UserId(userId: string): UserIdTarget;
export declare function isRecipientTarget(v: unknown): v is RecipientTarget;
export interface ResolvedRecipient {
    to?: string;
    recipient?: string;
}
export declare function resolveRecipient(input: string | RecipientTarget, explicitRecipient?: string): ResolvedRecipient;
export interface RecipientIdentity {
    key: string;
    primary: 'phone' | 'bsuid';
    waId?: string;
    userId?: string;
    parentUserId?: string;
    username?: string;
    phoneUnavailable: boolean;
    replyTarget?: RecipientTarget;
}
export declare function getRecipientIdentity(input: {
    wa_id?: string;
    user_id?: string;
    parent_user_id?: string;
    username?: string;
}): RecipientIdentity;
export {};