withLoading component example:

```jsx static
import React from 'react';
import { withLoading } from 'polestar-ui-kit';

class MyComponent extends React.Component {

    save = () => {
        this.props.setLoading();

        // request 요청 및 응답

        this.props.setLoading(false);
    }

    render() {
        return (
            <div
                onClick={this.save}
            />
        );
    }
}

export default withLoading(MyComponent);
```