RunbookTypeEnum type  
Defines values for RunbookTypeEnum. 
KnownRunbookTypeEnum can be used interchangeably with RunbookTypeEnum,
this enum contains the known values that the service supports.
Known values supported by the service
Script 
Graph 
PowerShellWorkflow 
PowerShell 
GraphPowerShellWorkflow 
GraphPowerShell 
Python2 
Python3
type RunbookTypeEnum = string