support occupancy prediction

autonomous_driving/occupancy_prediction/projects/mmdet3d_plugin/bevformer/__init__.py

+
+from .dense_heads import *
+from .detectors import *
+from .modules import *
+from .runner import *
+from .hooks import *
+from .backbones import *
\ No newline at end of file

autonomous_driving/occupancy_prediction/projects/mmdet3d_plugin/bevformer/apis/__init__.py

+from .train import custom_train_model
+from .mmdet_train import custom_train_detector
+# from .test import custom_multi_gpu_test
\ No newline at end of file

autonomous_driving/occupancy_prediction/projects/mmdet3d_plugin/bevformer/backbones/__init__.py

+from .internimage import  InternImage
+from .custom_layer_decay_optimizer_constructor import CustomLayerDecayOptimizerConstructor
\ No newline at end of file

autonomous_driving/occupancy_prediction/projects/mmdet3d_plugin/bevformer/backbones/ops_dcnv3/functions/__init__.py

+# --------------------------------------------------------
+# InternImage
+# Copyright (c) 2022 OpenGVLab
+# Licensed under The MIT License [see LICENSE for details]
+# --------------------------------------------------------
+
+from .dcnv3_func import DCNv3Function, dcnv3_core_pytorch

autonomous_driving/occupancy_prediction/projects/mmdet3d_plugin/bevformer/backbones/ops_dcnv3/make.sh

+#!/usr/bin/env bash
+# --------------------------------------------------------
+# InternImage
+# Copyright (c) 2022 OpenGVLab
+# Licensed under The MIT License [see LICENSE for details]
+# --------------------------------------------------------
+
+python setup.py build install

autonomous_driving/occupancy_prediction/projects/mmdet3d_plugin/bevformer/backbones/ops_dcnv3/modules/__init__.py

+# --------------------------------------------------------
+# InternImage
+# Copyright (c) 2022 OpenGVLab
+# Licensed under The MIT License [see LICENSE for details]
+# --------------------------------------------------------
+
+from .dcnv3 import DCNv3, DCNv3_pytorch
\ No newline at end of file