# This is a combination of 3 commits.
# The first commit's message is:
quick hack to make filtering callback work with protobufs

# This is the 2nd commit message:

missing interface

# This is the 3rd commit message:

Revert "missing interface"

This reverts commit 5236497fb44b79cfc52f7648b8d0cb1abbe98ef2.
make filtering callback work with protobufs
make filtering callback work with protobufs