How to use the dgeni-packages/typescript/api-doc-types/ApiDoc.BaseApiDoc function in dgeni-packages

return docs.filter(doc => {
            const isPublic = isPublicDoc(doc);
            // Update the API document name in case the "@docs-public" tag is used
            // with an alias name.
            if (isPublic && doc instanceof ApiDoc.BaseApiDoc) {
                const docsPublicTag = getDocsPublicTag(doc);
                if (docsPublicTag !== undefined && docsPublicTag.description) {
                    doc.name = docsPublicTag.description;
                }
            }
            // Filter out private class members which could be annotated
            // with the "@docs-private" tag.
            if (isPublic && doc instanceof ClassExportDoc.ClassExportDoc) {
                doc.members = doc.members.filter(memberDoc => isPublicDoc(memberDoc));
            }
            return isPublic;
        });
    }