[Solved] Given the following code snippet, what will be the output of printing the graph's nodes?... Given the following code snippet, what will be the output of printing the graph's nodes? | LangChain

LangChain - LangGraph for Stateful Agents

Given the following code snippet, what will be the output of printing the graph's nodes?

graph = MultiAgentGraph()
agent_a = Agent('A')
agent_b = Agent('B')
graph.add_node(agent_a)
graph.add_node(agent_b)
print(graph.nodes())

AError: nodes() method not found

B['A', 'B']

C[agent_a, agent_b]

D[Agent('A'), Agent('B')]

Step-by-Step Solution

Solution:

Step 1: Understand add_node behavior
Adding agent objects stores them as nodes in the graph.
Step 2: Printing nodes() returns list of agent objects
So output shows list with Agent('A') and Agent('B') objects.
Final Answer:
[Agent('A'), Agent('B')] -> Option D
Quick Check:
Graph nodes output = Agent objects list [OK]

Quick Trick: Nodes() returns agent objects, not just names [OK]

Common Mistakes:

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Given the following code snippet, what will be the output of printing the graph's nodes?