in firestore-semantic-search/functions/src/common/use_embeddings.ts [29:37]
async function getEmbeddingsUSE(text: string | string[]): Promise<number[][]> {
if (!model && (typeof text !== 'string' || text.length !== 0)) {
model = await use.load();
}
const embeddings = await model.embed(text.length ? text : [text]);
return embeddings.arraySync();
}