MetricsView platform has 2 task types:

Each task Type has it’s own TaskType_ID, which has to be specified within JSON object.

Potential values for Task_type_id
Task Type Description TaskType_ID
Windows Performance Counter Provides the ability to monitor a test or production environment using data from the Windows Performance Counter (WPC) 63
MetricsView Custom Collector Allows to gather and aggregate data from any counter on any system. 65