A struct used to aggregate statistical metrics data for a GenStage process.

The fields are:

• name - the module name for the GenStage process

• pid - the pid for the GenStage process

• demand - GenMetrics.GenStage.Stats for upstream demand

• events - GenMetrics.GenStage.Stats for emitted events

• timings - GenMetrics.GenStage.Stats for time on GenStage callbacks