mirror of
https://github.com/langchain-ai/langgraph.git
synced 2026-08-26 17:42:24 +02:00
Nick Hollon
58e0773ec6
Pregel doesn't have a "call" concept — its unit of work is a task. The
namespace segment after `:` is documented in `_internal/_constants.py`
as the `task_id` ("for checkpoint_ns, for each level, separates the
namespace from the task_id"), and "parent task" already shows up as
existing pregel vocabulary (`_algo.py`, `_runner.py`).
`parent_task_id` matches that vocabulary: from the child subgraph's
perspective, the id we carry on every lifecycle event identifies the
task in the parent scope whose execution dispatched this subgraph.
Renames the wire field, the `SubgraphRunStream.parent_task_id`
attribute, all internal parameter / variable names, and the test
identifiers.