src/langgraphagenticai/state/state.py

from typing import Annotated,Literal,Optional,List
from typing_extensions import TypedDict
from langgraph.graph.message import add_messages
from langchain_core.messages import AIMessage,HumanMessage,BaseMessage

class State(TypedDict):
    """ 
    Represents the structure of the state used in the graph
    """
    messages: Annotated[list,add_messages]