Get Cart for Customer Role

Hi

i tried to get cart:
Authentication: jwt token
endpoint: /cocart/v1/get-cart/id

it gets each user/customer cart just for administrator Role.

it is because of this line of code in the rest api file:

public function get_permission_check() {
		if ( ! current_user_can( 'administrator' ) ) {
			return new WP_Error( 'cocart_cannot_read_cart', __( 'Cannot read cart!', 'cart-rest-api-for-woocommerce' ), array( 'status' => 500 ) );
		}
		return true;
	} // END get_permission_check()

so how a customer can get his/her cart while his/her role is not administrator?