start
Signal that the execution has begun.
Parameters
startTime
The time that execution began, in milliseconds in the Unix epoch. Used to drive the clock that shows for how long a cell has been running. If not given, the clock won't be shown.
Signal that the execution has begun.
The time that execution began, in milliseconds in the Unix epoch. Used to drive the clock that shows for how long a cell has been running. If not given, the clock won't be shown.