text: module.exports = {
    Canvas: require('./canvas'),
    Group: require('./core/group'),
    Shape: require('./core/shape'),
    Arc: require('./shapes/arc'),
    Circle: require('./shapes/circle'),
    Dom: require('./shapes/dom'),
    Ellipse: require('./shapes/ellipse'),
    Fan: require('./shapes/fan'),
    Image: require('./shapes/image'),
    Line: require('./shapes/line'),
    Marker: require('./shapes/marker'),
    Path: require('./shapes/path'),
    Polygon: require('./shapes/polygon'),
    Polyline: require('./shapes/polyline'),
    Rect: require('./shapes/rect'),
    Text: require('./shapes/text'),
    PathSegment: require('./shapes/util/path-segment'),
    PathUtil: require('./util/path'),
    Event: require('./event'),
    // version, etc.
    version: '3.3.6'
  };