import { AxiosInstance } from 'axios';
import { DoubleOptinStatus } from '../@types';
export default function (client: AxiosInstance): {
    getDoubleOptinStatus(): Promise<DoubleOptinStatus>;
    hasEnabledDoubleOptin(): Promise<boolean>;
    setDoubleOptin(isEnabled: boolean): Promise<DoubleOptinStatus>;
    enableDoubleOptin(): Promise<DoubleOptinStatus>;
    disableDoubleOptin(): Promise<DoubleOptinStatus>;
};