Fixing React Native CheckBox

I have a React Native project. My understanding is that react native doesn't allow you to style checkboxes inherently, so I am using react-native-check-box and looking on expo.

When running I get "Unidentified is not an object (evaluating 'this.state.isChecked')"

I am using the exact suggested code from https://www.npmjs.com/package/react-native-check-box#demo

What is going wrong?

import React, { useState } from 'react';
import { Text, View, Image } from 'react-native';

import CheckBox from 'react-native-check-box';

import defaultStyles from "../../config/styles";

function AuthorizeInput () {

    return (

        <View style={defaultStyles.authorize}>
        <CheckBox
        style=
        onClick={()=>{
        this.setState({
                isChecked:!this.state.isChecked
            })
        }}
        isChecked={this.state.isChecked}
        />
        <Text style={defaultStyles.authText}>I am an authorized representative of this business.</Text>
        </View>
    );
}

export default AuthorizeInput;