HungarianAssigner3D: __init__() got an unexpected keyword argument 'iou_calculator'

[alexzhuuuu]

What abou the 'iou_calculator' parameter??

How to solve this problme :
----HungarianAssigner3D: init() got an unexpected keyword argument 'iou_calculator'

[alexzhuuuu]

What abou the 'iou_calculator' parameter??

How to solve this problme : ----HungarianAssigner3D: init() got an unexpected keyword argument 'iou_calculator'

My config file relating to problem is just like following:
train_cfg=dict(
pts=dict(
dataset='nuScenes',
assigner=dict(
type='HungarianAssigner3D',
iou_calculator=dict(type='BboxOverlaps3D', coordinate='lidar'),
cls_cost=dict(type='FocalLossCost', gamma=2, alpha=0.25, weight=0.15),
reg_cost=dict(type='BBoxBEVL1Cost', weight=0.25),
iou_cost=dict(type='IoU3DCost', weight=0.25)
),