booster[1]:
0:[f28<-1.00136e-05] yes=1,no=2,missing=1
	1:[f55<-1.00136e-05] yes=3,no=4,missing=3
		3:leaf=1.71218
		4:leaf=-1.70044
	2:[f108<-1.00136e-05] yes=5,no=6,missing=5
		5:leaf=-1.94071
		6:leaf=1.85965
booster[2]:
0:[f59<-1.00136e-05] yes=1,no=2,missing=1
	1:[f28<-1.00136e-05] yes=3,no=4,missing=3
		3:leaf=0.784718
		4:leaf=-0.96853
	2:leaf=-6.23624
