protected function set_item_discount_amounts( $discounts ) {
		$item_discounts = $discounts->get_discounts_by_item();

		if ( $item_discounts ) {
			foreach ( $item_discounts as $item_id => $amount ) {
				$item = $this->get_item( $item_id, false );

				// If the prices include tax, discounts should be taken off the tax inclusive prices like in the cart.
				if ( $this->get_prices_include_tax() && wc_tax_enabled() && 'taxable' === $item->get_tax_status() ) {
					$taxes = WC_Tax::calc_tax( $amount, WC_Tax::get_rates( $item->get_tax_class() ), true );

					// Use unrounded taxes so totals will be re-calculated accurately, like in cart.
					$amount = $amount - array_sum( $taxes );
				}

				$item->set_total( max( 0, $item->get_total() - $amount ) );
			}
		}
	}