src/Utils/ASTDefinitionBuilder.php
private function getDescription($node)
    {
        if ($node->description) {
            return $node->description->value;
        }
        if (isset($this->options['commentDescriptions'])) {
            $rawValue = $this->getLeadingCommentBlock($node);
            if ($rawValue !== null) {
                return BlockString::value("\n" . $rawValue);
            }
        }

        return null;
    }
private function getDescription($node)
    {
        if ($node->description) {
            return $node->description->value;
        }
        if (isset($this->options['commentDescriptions'])) {
            $rawValue = $this->getLeadingCommentBlock($node);
            if ($rawValue !== null) {
                return BlockString::value("\n" . $rawValue);
            }
        }

        return null;
    }
Given an ast node, returns its string description.