import type { AuthenticationCreds, WAVersion } from '../Types/index.js';
/** unix timestamp of a date in seconds */
export declare const unixTimestampSeconds: (date?: Date) => number;
/**
 * Coerce a protobuf timestamp into a plain JS number. Matches upstream
 * Baileys' `Utils/generics.ts:toNumber` — protobufjs may hand us a `Long`
 * (`{ low, high, toNumber() }`), a plain number, or `null`/`undefined`.
 *
 * When the value is a Long without a `.toNumber()` method, we fall back to
 * `low` only when `high === 0` — otherwise the value exceeds 32 bits and
 * dropping `high` would silently truncate (e.g. messageTimestamps in ms
 * past 2038). For oversized values we still call into Number conversion
 * manually so the caller gets a usable approximation rather than a
 * zero-shifted lie.
 */
export declare const toNumber: (t: {
    toNumber?: () => number;
    low?: number;
    high?: number;
} | number | null | undefined) => number;
/**
 * Promise-based timeout. Mirrors upstream Baileys' `delay` so bot code that
 * destructures `delay` from the package keeps working unchanged.
 */
export declare const delay: (ms: number) => Promise<void>;
/**
 * JSON replacer/reviver pair for serializing `Buffer`/`Uint8Array` values as
 * `{ type: 'Buffer', data: <base64> }`. API-compatible with the upstream Baileys
 * `BufferJSON` helper — drop-in replacement for legacy auth-state code that
 * persists creds via `JSON.stringify(state, BufferJSON.replacer)`.
 */
export declare const BufferJSON: {
    replacer: (_: string, value: unknown) => unknown;
    reviver: (_: string, value: unknown) => unknown;
};
/**
 * Returns a minimal {@link AuthenticationCreds} placeholder. All real credential
 * material is owned by the Rust bridge; this stub exists only for upstream
 * Baileys code paths that call `initAuthCreds()` to seed a fresh `auth.creds`
 * object before pairing. The returned object is safe to pass as `auth.creds`
 * but the bridge will ignore every field except `me`/`registered`/`platform`.
 */
export declare const initAuthCreds: () => AuthenticationCreds;
export declare const fetchLatestWaWebVersion: (options?: RequestInit) => Promise<{
    version: WAVersion;
    isLatest: boolean;
    error?: undefined;
} | {
    version: WAVersion;
    isLatest: boolean;
    error: unknown;
}>;
/**
 * Alias for {@link fetchLatestWaWebVersion}. Kept for source-level compatibility
 * with upstream Baileys code that imports `fetchLatestBaileysVersion`.
 */
export declare const fetchLatestBaileysVersion: (options?: RequestInit) => Promise<{
    version: WAVersion;
    isLatest: boolean;
    error?: undefined;
} | {
    version: WAVersion;
    isLatest: boolean;
    error: unknown;
}>;
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