import type * as Engine from '../core/Engine.js';
import type * as Errors from '../core/Errors.js';
export * from '../core/X25519.js';
/**
 * Creates a Node.js implementation of the [`X25519`](/api/X25519) engine slot,
 * without installing it.
 *
 * Random key generation remains on Ox's default implementation.
 *
 * @example
 * ```ts twoslash
 * // @noErrors
 * import { Engine } from 'ox'
 * import { X25519 } from 'ox/node'
 *
 * await Engine.install({ X25519: X25519.engine() })
 *
 * X25519.getPublicKey({ privateKey: '0x...' })
 * ```
 *
 * @returns The raw `X25519` engine slot.
 */
export declare function engine(): Promise<engine.ReturnType>;
export declare namespace engine {
    /** Every `X25519` primitive this module implements. */
    type ReturnType = {
        [key in 'getPublicKey' | 'getSharedSecret']-?: NonNullable<Engine.Ecdh[key]>;
    };
    type ErrorType = Errors.GlobalErrorType;
}
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