import llama_index class rag_worker(): def __init__(self) -> None: pass def assign_embedding_model(self): pass def save_to_checkpoint(self): pass def load_from_checkpoint(self): pass def add_documents_to_vector_store(self, documents): pass def add_text_to_vector_store(self, documents): pass def inspect_vector_store(self): pass def retrieve_from_store_with_query(self, query): pass @staticmethod def build_prompt(self): pass