feat: make ToolCall serializable for message history persistence#444
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majiayu000 wants to merge 1 commit intoMadcowD:mainfrom
Open
feat: make ToolCall serializable for message history persistence#444majiayu000 wants to merge 1 commit intoMadcowD:mainfrom
majiayu000 wants to merge 1 commit intoMadcowD:mainfrom
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Added field_serializer and field_validator for ToolCall.tool to enable
JSON serialization/deserialization of Messages containing ToolCalls.
Changes:
- ToolCall.tool: serialize to {module, qualname}, resolve on deserialize
- ToolCall.params: serialize with type info for proper reconstruction
- _lstr: fix origin_trace deserialization to handle both list and string
This enables workflow persistence where message history with pending
tool calls can be saved and restored across process restarts.
Fixes MadcowD#412
Signed-off-by: majiayu000 <1835304752@qq.com>
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Summary
field_serializerandfield_validatorforToolCall.toolto enable JSON serializationfield_serializerforToolCall.paramswith type info for reconstruction_lstrorigin_trace deserialization to handle both list and string formatsChanges
src/ell/types/message.py: Added serializers/validators for ToolCallsrc/ell/types/_lstr.py: Fixed origin_trace deserializationtests/test_tool_call_serialization.py: Added 9 comprehensive testsUse Case
This enables workflow persistence where message history with pending tool calls can be saved and restored:
Test plan
Fixes #412