You may change your embeddingModel = “text-embedding-3-small” into these 9 Embeddings for Text supported model versions namely:

• Text-embedding-preview-0815

• Text-embedding-004

• Text-multilingual-embedding-002

• Text-embedding-preview-0409

• Text-multilingual-embedding-preview-0409

• textembedding-gecko@003

• textembedding-gecko@002

• textembedding-gecko-multilingua@001

• textembedding-gecko@001