How to use the ember-get-config.social function in ember-get-config

getMetaTags(this: MetaTags, metaTagsOverrides: MetaTagsData): MetaTagsDefs {
        // Default values.
        const metaTagsData: MetaTagsData = {
            type: 'article',
            description: this.get('i18n').t('general.hosted_on_the_osf'),
            url: pathJoin(config.OSF.url, this.get('router').get('currentURL')),
            language: this.get('i18n').get('locale'),
            image: pathJoin(config.OSF.url, 'static/img/preprints_assets/osf/sharing.png'),
            imageType: 'image/png',
            imageWidth: 1200,
            imageHeight: 630,
            imageAlt: this.get('i18n').t('home.brand'),
            siteName: this.get('i18n').t('home.brand'),
            institution: this.get('i18n').t('general.cos'),
            fbAppId: config.FB_APP_ID,
            twitterSite: config.social.twitter.viaHandle,
            twitterCreator: config.social.twitter.viaHandle,
            ...metaTagsOverrides,
        };

        // Include URL, DOI, and any additional identifiers.
        const identifiers = toArray(metaTagsData.url)
            .concat(toArray(metaTagsData.doi))
            .concat(toArray(metaTagsData.identifier));

        return {
            // Citation
            citation_title: metaTagsData.title,
            citation_doi: metaTagsData.doi,
            citation_publisher: metaTagsData.siteName,
            citation_author_institution: metaTagsData.institution,
            citation_author: metaTagsData.author,

// Default values.
        const metaTagsData: MetaTagsData = {
            type: 'article',
            description: this.get('i18n').t('general.hosted_on_the_osf'),
            url: pathJoin(config.OSF.url, this.get('router').get('currentURL')),
            language: this.get('i18n').get('locale'),
            image: pathJoin(config.OSF.url, 'static/img/preprints_assets/osf/sharing.png'),
            imageType: 'image/png',
            imageWidth: 1200,
            imageHeight: 630,
            imageAlt: this.get('i18n').t('home.brand'),
            siteName: this.get('i18n').t('home.brand'),
            institution: this.get('i18n').t('general.cos'),
            fbAppId: config.FB_APP_ID,
            twitterSite: config.social.twitter.viaHandle,
            twitterCreator: config.social.twitter.viaHandle,
            ...metaTagsOverrides,
        };

        // Include URL, DOI, and any additional identifiers.
        const identifiers = toArray(metaTagsData.url)
            .concat(toArray(metaTagsData.doi))
            .concat(toArray(metaTagsData.identifier));

        return {
            // Citation
            citation_title: metaTagsData.title,
            citation_doi: metaTagsData.doi,
            citation_publisher: metaTagsData.siteName,
            citation_author_institution: metaTagsData.institution,
            citation_author: metaTagsData.author,
            citation_description: metaTagsData.description,

get twitterHref(this: SharingIcons): string {
        const queryParams = {
            url: this.hyperlink,
            text: this.title,
            via: config.social.twitter.viaHandle,
        };
        return `https://twitter.com/intent/tweet?${param(queryParams)}`;
    }