public function getEnvironmentVariable($definition)
    {
        // Iterate over all environmentVariables
        /** @var \AppserverIo\Appserver\Core\Api\Node\EnvironmentVariableNode $environmentVariableNode */
        foreach ($this->getEnvironmentVariables() as $environmentVariableNode) {
            // If we found one with a matching definition we will return it
            if ($environmentVariableNode->getDefinition() === $definition) {
                return $environmentVariableNode;
            }
        }

        // Still here? Seems we did not find anything
        return false;
    }