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from langgraph.graph import StateGraph, START,END, MessagesState
from langgraph.prebuilt import tools_condition,ToolNode
from langchain_core.prompts import ChatPromptTemplate
from src.langgraphagenticai.state.state import State
from src.langgraphagenticai.nodes.basic_chatbot_node import BasicChatbotNode
class GraphBuilder:
def __init__(self,model):
self.llm=model
self.graph_builder=StateGraph(State)
def basic_chatbot_build_graph(self):
"""
Builds a basic chatbot graph using LangGraph.
This method initializes a chatbot node using the `BasicChatbotNode` class
and integrates it into the graph. The chatbot node is set as both the
entry and exit point of the graph.
"""
self.basic_chatbot_node=BasicChatbotNode(self.llm)
self.graph_builder.add_node("chatbot",self.basic_chatbot_node.process)
self.graph_builder.add_edge(START,"chatbot")
self.graph_builder.add_edge("chatbot",END)
def setup_graph(self, usecase: str):
"""
Sets up the graph for the selected use case.
"""
if usecase == "Basic Chatbot":
self.basic_chatbot_build_graph()
return self.graph_builder.compile()
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