Establishing connection with germlin

[Boopalanoptisol]

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Example Code

from langchain_community.graphs.neptune_graph import NeptuneGraph
import boto3
client = boto3.client(
    'neptune',
    region_name='ap-northeast-1',
    aws_access_key_id=os.getenv("AWS_ACCESS_KEY_ID"),
    aws_secret_access_key=os.getenv("AWS_SECRET_KEY_ID"),
    verify=False
)

graph = NeptuneGraph(host=os.environ["NEPTUNEML_HOST"], port=port, use_https=True,client=client,region_name=os.environ["REGION_NAME"])

Description

I want to connect with AWS externally from my python project using Langchain.

This is the error I receive:
{'message': 'Could not get schema for Neptune database', 'detail': '{'message': 'Summary API is not available for this instance of Neptune,ensure the engine version is >=1.2.1.0', 'details': "'Neptune' object has no attribute 'get_propertygraph_summary'"}'}

System Info

boto3==1.34.149
botocore==1.34.149
langchain==0.2.6
langchain-chroma==0.1.2
langchain-community==0.2.6
langchain-core==0.2.11
langchain-openai==0.1.14
langchain-text-splitters==0.2.2
langgraph==0.1.5
langsmith==0.1.90