docs: apply ruff

Author: nonegom

data_utils/datahub_source.py

@@ -1,5 +1,3 @@
-import datahub.emitter.mce_builder as builder
-from datahub.emitter.mcp import MetadataChangeProposalWrapper
 from datahub.metadata.schema_classes import DatasetPropertiesClass, SchemaMetadataClass
 from datahub.emitter.rest_emitter import DatahubRestEmitter
 from datahub.ingestion.graph.client import DatahubClientConfig, DataHubGraph

llm_utils/chains.py

@@ -1,11 +1,10 @@
 import os
-from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder, load_prompt, SystemMessagePromptTemplate
+from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder, SystemMessagePromptTemplate
 
 from .llm_factory import get_llm
 
 from dotenv import load_dotenv
 from prompt.template_loader import get_prompt_template
-import yaml
 
 env_path = os.path.join(os.getcwd(), ".env")
 

prompt/template_loader.py

@@ -1,9 +1,5 @@
 import os
-import re
-from datetime import datetime
 
-from langchain_core.prompts import PromptTemplate
-from langgraph.prebuilt.chat_agent_executor import AgentState
 
 
 def get_prompt_template(prompt_name: str) -> str: