Imports
- github.com/grpc-ecosystem/go-grpc-middleware/auth
- github.com/pantheon-systems/go-certauth/certutils
- github.com/pkg/errors
- github.com/sirupsen/logrus
- github.com/slack-go/slack
- golang.org/x/net/context
- google.golang.org/grpc
- google.golang.org/grpc/codes
- google.golang.org/grpc/credentials
- google.golang.org/grpc/keepalive
- google.golang.org/grpc/peer