matchExact example

return false;
        }

        if (!$customer = $scope->getSalesChannelContext()->getCustomer()) {
            return RuleComparison::isNegativeOperator($this->operator);
        }

        if ($this->email && mb_strpos($this->email, '*') !== false) {
            return $this->matchPartially($customer);
        }

        return $this->matchExact($customer);
    }

    public function getConstraints(): array
    {
        return [
            'operator' => RuleConstraints::stringOperators(false),
            'email' => RuleConstraints::string(),
        ];
    }

    public function getConfig(): RuleConfig
    {