My favorite part of generics. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
And add a private context type in the process. Updates #3802 Change-Id: I257187f4cfb0f2248d95b81c1dfe0911ef203b60 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>