Wondering if I can get some assistance

Wondering if I can get some assistance here.

I have the code below for an ingestion pipeline into a mongodb vector database, but getting some pydantic validation errors.


from llama_index.embeddings.openai import OpenAIEmbedding
from llama_index.core.node_parser import SentenceSplitter
from llama_index.core.ingestion import IngestionPipeline
from llama_index.core import VectorStoreIndex
from llama_index.vector_stores.mongodb import MongoDBAtlasVectorSearch
vector_store = MongoDBAtlasVectorSearch(mongo_client, db_name=DB_NAME, collection_name=COLLECTION_NAME, index_name="vector_index")

pipeline = IngestionPipeline(
transformations=[
SentenceSplitter(chunk_size=500, chunk_overlap=0),
OpenAIEmbedding(model="text-embedding-3-small", dimensions=256),
],
vector_store=vector_store
)

Ingest directly into a vector db

pipeline.run(documents=llama_documents)


index = VectorStoreIndex.from_vector_store(vector_store)


Error:

---------------------------------------------------------------------------
ValidationError Traceback (most recent call last)
<ipython-input-12-6edc00a10dce> in <cell line: 11>()
9 print(type(vector_store))
10
---> 11 pipeline = IngestionPipeline(
12 transformations=[
13 SentenceSplitter(chunk_size=500, chunk_overlap=0),

1 frames
/usr/local/lib/python3.10/dist-packages/pydantic/v1/main.py in init(pydantic_self, **data)
339 values, fields_set, validation_error = validate_model(pydantic_self.class, data)
340 if validation_error:
--> 341 raise validation_error
342 try:
343 object_setattr(pydantic_self, 'dict', values)

ValidationError: 1 validation error for IngestionPipeline
vector_store
value is not a valid dict (type=type_error.dict)