import React from 'react';
import { PureComponent } from '../component';
import { LazyloadProps } from './Props';
interface LazyloadState {
    ready: boolean;
}
declare class Lazyload extends PureComponent<LazyloadProps, LazyloadState> {
    static defaultProps: {
        offset: number;
    };
    placeholder: HTMLSpanElement;
    lazyId: string | null;
    constructor(props: LazyloadProps);
    componentDidMount(): void;
    componentWillUnmount(): void;
    placeholderRef: (el: HTMLSpanElement) => void;
    render(): React.ReactNode;
}
export default Lazyload;