How to use the victory-chart/src.VictoryBar.defaultProps function in victory-chart

import React from "react";
import { Dimensions, Platform } from "react-native";
import { G } from "react-native-svg";
import { VictoryLabel, VictoryContainer, Bar } from "victory-core-native";
import { VictoryBar } from "victory-chart/src";

export default class extends VictoryBar {
  static defaultProps = {
    ...VictoryBar.defaultProps,
    dataComponent: ,
    labelComponent: ,
    containerComponent: ,
    groupComponent: