import * as React from "react";
declare type Props = React.PropsWithChildren<{
    loader: React.ReactNode;
}>;
declare type State = {
    mounted: boolean;
};
export default class ClientOnly extends React.Component<Props, State> {
    static defaultProps: {
        loader: null;
    };
    state: {
        mounted: boolean;
    };
    componentDidMount(): void;
    render(): React.ReactNode;
}
export {};