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docs/build/snippets/python/code-samples/message-serialization-py.mdx
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```python
from langchain.messages import HumanMessage
from langchain_core.load import dumpd, load
message = HumanMessage("What is the capital of France?")
# Serialize to a plain dict
serialized = dumpd(message)
# Deserialize back to a message object
restored = load(serialized)
```