suppress errors in vision - batch 1

Reviewed By: pradeep90

Differential Revision: D22628883

fbshipit-source-id: a19c271b4025c0e3c61408604a7e0f9fbcbdfa5b

pytorch3d/renderer/points/rasterize_points.py

@@ -3,6 +3,8 @@
 from typing import Optional
 
 import torch
+
+# pyre-fixme[21]: Could not find name `_C` in `pytorch3d`.
 from pytorch3d import _C
 from pytorch3d.renderer.mesh.rasterize_meshes import pix_to_ndc