public function init_form_fields() {
		$this->form_fields = array(
			'enabled'      => array(
				'title'   => __( 'Enable/Disable', 'woocommerce' ),
				'type'    => 'checkbox',
				'label'   => __( 'Once disabled, this legacy method will no longer be available.', 'woocommerce' ),
				'default' => 'no',
			),
			'title'        => array(
				'title'       => __( 'Method title', 'woocommerce' ),
				'type'        => 'text',
				'description' => __( 'This controls the title which the user sees during checkout.', 'woocommerce' ),
				'default'     => __( 'Free Shipping', 'woocommerce' ),
				'desc_tip'    => true,
			),
			'availability' => array(
				'title'   => __( 'Method availability', 'woocommerce' ),
				'type'    => 'select',
				'default' => 'all',
				'class'   => 'availability wc-enhanced-select',
				'options' => array(
					'all'      => __( 'All allowed countries', 'woocommerce' ),
					'specific' => __( 'Specific Countries', 'woocommerce' ),
				),
			),
			'countries'    => array(
				'title'             => __( 'Specific countries', 'woocommerce' ),
				'type'              => 'multiselect',
				'class'             => 'wc-enhanced-select',
				'css'               => 'width: 400px;',
				'default'           => '',
				'options'           => WC()->countries->get_shipping_countries(),
				'custom_attributes' => array(
					'data-placeholder' => __( 'Select some countries', 'woocommerce' ),
				),
			),
			'requires'     => array(
				'title'   => __( 'Free shipping requires...', 'woocommerce' ),
				'type'    => 'select',
				'class'   => 'wc-enhanced-select',
				'default' => '',
				'options' => array(
					''           => __( 'N/A', 'woocommerce' ),
					'coupon'     => __( 'A valid free shipping coupon', 'woocommerce' ),
					'min_amount' => __( 'A minimum order amount', 'woocommerce' ),
					'either'     => __( 'A minimum order amount OR a coupon', 'woocommerce' ),
					'both'       => __( 'A minimum order amount AND a coupon', 'woocommerce' ),
				),
			),
			'min_amount'   => array(
				'title'       => __( 'Minimum order amount', 'woocommerce' ),
				'type'        => 'price',
				'placeholder' => wc_format_localized_price( 0 ),
				'description' => __( 'Users will need to spend this amount to get free shipping (if enabled above).', 'woocommerce' ),
				'default'     => '0',
				'desc_tip'    => true,
			),
		);
	}