Coduo\PHPMatcher\Parser\ExpanderInitializer::getExpanderDefinition PHP Method

    public function getExpanderDefinition($expanderName)
    {
        if (!$this->hasExpanderDefinition($expanderName)) {
            throw new InvalidArgumentException(sprintf("Definition for \"%s\" expander does not exists.", $expanderName));
        }
        return $this->expanderDefinitions[$expanderName];
    }