cancel
Cancel a single scenario by name without stopping the enclosing run. Only meaningful for scenario sweeps — other orchestrators return false from the default implementation.
Return
true when a running scenario was found and a cancellation request was issued; false when the name was unknown, not running, or this handle doesn't support per-scenario cancellation.
Parameters
scenario
matches the ScenarioSpec.name of the scenario to cancel. Names that aren't currently running are silently ignored.