When specified, will include only tasks from the specified organization unit, excluding child organizations
When specified, will include all tasks, regardless if the user can execute them
When specified, will include all assigned tasks in the counts (regardless of whom it is assigned to)
Defaults to the current organization when omitted - includes child organizations Entity type: OrganizationUnit
Optionally (and additionally) filter on specified types
Return the total number of open tasks, and the count per task type.