Is there documentation that shows the mapping between the management portal components and object script package.class.methods? 
I am searching on-line documentation but have not been successful.
For example, in the management portal  SystemOperation > TaskManager > TaskSchedule  can map to the method:  class(Monitors.Tasks).ListSuspendedTasks().

What would be a similar mapping for SystemOperation > TaskManager > TaskHistory?
I initially thought it would be something similar to class(Monitors.Tasks).ListTaskHistory().
Best Regards,