/**
 * @param {import('structured-content.js').Content[]} content
 * @returns {import('structured-content.js').Content[]}
 */
_extractGlossaryDataOld(content) {
    /** @type {import('structured-content.js').Content[]} */
    const glossaryContentQueue = [];
    const structuredContentQueue = content;
    while (structuredContentQueue.length > 0) {
        const structuredContent = structuredContentQueue.shift();
        if (Array.isArray(structuredContent)) {
            structuredContentQueue.push(...structuredContent);
        } else if (typeof structuredContent === 'object' && structuredContent.content) {
            // @ts-expect-error - Checking if `data` exists
            if (structuredContent.data?.content === 'glossary') {
                glossaryContentQueue.push(structuredContent);
                continue;
            }
            structuredContentQueue.push(structuredContent.content);
        }
    }

    return glossaryContentQueue;
}