public function init_form_fields() {
		$this->instance_form_fields = array(
			'title'      => array(
				'title'       => __( 'Title', 'woocommerce' ),
				'type'        => 'text',
				'description' => __( 'This controls the title which the user sees during checkout.', 'woocommerce' ),
				'default'     => $this->method_title,
				'desc_tip'    => true,
			),
			'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,
			),
			'ignore_discounts' => array(
				'title'       => __( 'Coupons discounts', 'woocommerce' ),
				'label'       => __( 'Apply minimum order rule before coupon discount', 'woocommerce' ),
				'type'        => 'checkbox',
				'description' => __( 'If checked, free shipping would be available based on pre-discount order amount.', 'woocommerce' ),
				'default'     => 'no',
				'desc_tip'    => true,
			),
		);
	}