public function __get( $key ) {
		if ( in_array( $key, array( 'posted', 'shipping_method', 'payment_method' ), true ) && empty( $this->legacy_posted_data ) ) {
			$this->legacy_posted_data = $this->get_posted_data();
		}

		switch ( $key ) {
			case 'enable_signup':
				return $this->is_registration_enabled();
			case 'enable_guest_checkout':
				return ! $this->is_registration_required();
			case 'must_create_account':
				return $this->is_registration_required() && ! is_user_logged_in();
			case 'checkout_fields':
				return $this->get_checkout_fields();
			case 'posted':
				wc_doing_it_wrong( 'WC_Checkout->posted', 'Use $_POST directly.', '3.0.0' );
				return $this->legacy_posted_data;
			case 'shipping_method':
				return $this->legacy_posted_data['shipping_method'];
			case 'payment_method':
				return $this->legacy_posted_data['payment_method'];
			case 'customer_id':
				return apply_filters( 'woocommerce_checkout_customer_id', get_current_user_id() );
			case 'shipping_methods':
				return (array) WC()->session->get( 'chosen_shipping_methods' );
		}
	}