code: def get_chromadb_client(index_path: str):
      global _chromadb_client_instance
      if _chromadb_client_instance is None:
          try_to_import_chromadb_client()
          import chromadb  # noqa: F401
  
          # creating a local client
          _chromadb_client_instance = chromadb.PersistentClient(
              path=index_path
          )
      return _chromadb_client_instance
  
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 1 for calling a global function with example usage: get_chromadb_client(index_path) and returns: _chromadb_client_instance