code: def create(self, vector_dim: int):
      self._client.create_collection(
          name=self._collection_name,
          metadata={
              "hnsw:construction_ef": vector_dim,
              "hnsw:space": "cosine",
          },
      )
  
file_path: evadb/evadb/third_party/vector_stores/chromadb.py
imports: from typing import List
  from evadb.third_party.vector_stores.types import FeaturePayload, VectorIndexQuery, VectorIndexQueryResult, VectorStore
  from evadb.utils.generic_utils import try_to_import_chromadb_client
label_desc: Use image node_id 2 for calling the ChromaDBVectorStore obj's underlying member method code with example usage: obj.create(vector_dim) without return types