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AsyncSubagentRunStream( self, mux: StreamMux, *, path: tuple[str, ...]
AsyncSubgraphRunStream
Subagent name (the nested run's lc_agent_name).
lc_agent_name
Causation edge — the tool call that triggered this subagent.
Returns the LifecycleCause recovered by the base transformer (a {"type": "toolCall", "tool_call_id": ...} dict) when the originating tool call could be joined, else None.
LifecycleCause
{"type": "toolCall", "tool_call_id": ...}
None
Typed async handle for a nested named-agent execution.