`TInstanceGroupManager`
pt		SetbaseInstanceName
pt		SetcreationTimestamp
pt		SetcurrentActions
pt		Setdescription
pt		Setfingerprint
pt		Setid
pt		SetinstanceGroup
pt		SetinstanceTemplate
pt		Setkind
pt		Setname
pt		SetnamedPorts
pt		SetselfLink
pt		SettargetPools
pt		SettargetSize
pt		Setzone

`TGoogleBaseObject`
		AllowAdditionalProperties