Issue with additional_instructions parameter with LLMGraphTransformer (not working)

[kakolla]

Hi there,

In a project with Neo4J and Langchain, I'm unable to see any difference with the "additional_instructions" parameter to the LLMGraphTransformer as I want to pass in new info to the LLM when generating the graph documents for the Neo4J database. I tested it with simple instructions but it looks like it isn't doing anything.

I'm wondering if it's no longer supported or if I'm setting something up wrong.

Imports:

from langchain_experimental.graph_transformers import LLMGraphTransformer
from langchain_openai import ChatOpenAI

Simple instruction I want to add in

llm = ChatOpenAI(temperature=0, model_name="gpt-3.5-turbo")

graph_transformer_prompt = """
When creating nodes, capitalize the id.
For instance Apple becomes APPLE.
"""
llm_transformer = LLMGraphTransformer(llm=llm, additional_instructions=graph_transformer_prompt)

Converting a document into graph documents

from langchain_core.documents import Document
with open('apple_document.txt', 'r') as file:
    text = file.read()

doc = [Document(page_content=text)]
graph_doc = await llm_transformer.aconvert_to_graph_documents(doc)
graph.add_graph_documents(graph_doc, include_source=True, baseEntityLabel=True)
print(graph_doc)

Output:

[GraphDocument(nodes=[Node(id='Bananas', type='Fruit', properties={}), Node(id='Apples', type='Code word', properties={}), Node(id='Red Trucks', type='Code word', properties={})], relationships=[Relationship(source=Node(id='Bananas', type='Fruit', properties={}), target=Node(id='Apples', type='Code word', properties={}), type='CODE_WORD_FOR', properties={}), Relationship(source=Node(id='Apples', type='Code word', properties={}), target=Node(id='Red Trucks', type='Code word', properties={}), type='CODE_WORD_FOR', properties={})], source=Document(metadata={'id': '83b84d36a24f3f060e3107fa7bc0d748'}, page_content='Bananas are bright yellow fruits.\nApples in this context are a code word for Red trucks.'))]

As it is visible it isn't capitalizing the nodes.
I'm wondering if I'm setting it up wrong, thank you!