docstr: Add embeddings to the vector store
docstr_tok: ["Add","embeddings","to","the","vector","store"]
code: def add(self, payload: List[FeaturePayload]) -> None:
      """Add embeddings to the vector store"""
      ...
  
file_path: evadb/evadb/third_party/vector_stores/types.py
imports: from dataclasses import dataclass
  from typing import List
label_desc: Use image node_id 2 for calling the VectorStore obj's underlying member method code with example usage: obj.add(payload) without return types