Optionally, a unique identifier for the run.
The epoch time at which the run started, if available.
Optional
dotted_The dotted order for the run.
This is a string composed of {time}{run-uuid}.* so that a trace can be sorted in the order it was executed.
Example:
Optional
trace_Unique ID assigned to every run within this nested trace. *
Events like 'start', 'end' linked to the run.