import * as React from 'react'; export interface ProgressLineProps { className?: string; percent?: number; prefixCls?: string; strokeColor?: string; strokeLinecap?: 'butt' | 'round' | 'square'; strokeWidth?: number; style?: React.CSSProperties; trailColor?: string; trailWidth?: number; } export declare class ProgressLine extends React.Component { static defaultProps: ProgressLineProps; private prevTimeStamp; path: SVGPathElement; constructor(props: ProgressLineProps, context: any); componentDidUpdate(): void; render(): JSX.Element; }