model = torchvision.models.detection.${1|fasterrcnn_resnet50_fpn,maskrcnn_resnet50_fpn,keypointrcnn_resnet50_fpn|}(pretrained=${2|False,True|}, progress=${3|True,False|}, pretrained_backbone=${4|True,False|})model = torchvision.models.detection.${1|fasterrcnn_resnet50_fpn,maskrcnn_resnet50_fpn,keypointrcnn_resnet50_fpn|}(pretrained=${2|False,True|}, progress=${3|True,False|}, pretrained_backbone=${4|True,False|})