Raised when a graph run exits early due to a drain request.
Raised when the graph has exhausted the maximum number of steps.
Raised when attempting to update a channel with an invalid set of updates.
Raised when a subgraph is interrupted, suppressed by the root graph.
Raised when graph receives an empty input.
Raised when the executor is unable to find a task (for distributed mode).
Failure context passed to a node-level error handler.
Raised when a node invocation exceeds one of its configured timeouts.
Raised by a node to interrupt execution.
