import React from 'react';
import Graph from './graph/index.js';
import PropTypes from 'prop-types';
export { Graph };
/** Sizing props the author passes; `propTypes` declares the rest */
type NumberLineSizeProps = {
    minWidth?: number;
    maxWidth?: number;
    maxHeight?: number;
};
export declare class NumberLine extends React.Component<NumberLineSizeProps> {
    static propTypes: {
        onMoveElement: PropTypes.Validator<(...args: any[]) => any>;
        onDeleteElements: PropTypes.Validator<(...args: any[]) => any>;
        onAddElement: PropTypes.Validator<(...args: any[]) => any>;
        onUndoElement: PropTypes.Validator<(...args: any[]) => any>;
        onClearElements: PropTypes.Validator<(...args: any[]) => any>;
        model: PropTypes.Validator<object>;
        answer: PropTypes.Requireable<any[]>;
    };
    constructor(props: any, context: any);
    titleRef: React.RefObject<HTMLDivElement>;
    componentDidMount(): void;
    componentDidUpdate(prevProps: any): void;
    typesetTitle(): void;
    toggleElement(index: any): void;
    elementTypeSelected(t: any): void;
    addElement(x: any): void;
    hasMaxNoOfPoints(): boolean;
    UNSAFE_componentWillReceiveProps(nextProps: any): void;
    deselectElements(): void;
    getSize(type: any, min: any, max: any, defaultValue: any): any;
    undo(): void;
    clearAll(): void;
    render(): React.JSX.Element;
}
export default NumberLine;