diff --git a/pcdet/models/view_transforms/__init__.py b/pcdet/models/view_transforms/__init__.py
new file mode 100644
index 0000000..e182aed
--- /dev/null
+++ b/pcdet/models/view_transforms/__init__.py
@@ -0,0 +1,4 @@
+from .depth_lss import DepthLSSTransform
+__all__ = {
+    'DepthLSSTransform': DepthLSSTransform,
+}
\ No newline at end of file