These symbols in `lib-effect` are referenced via reflection from
`CompositingVideoSinkProvider` in `lib-exoplayer` in order to avoid
a hard dependency from `lib-exoplayer` to `lib-effect`. Without this
keep rule, the symbols can get renamed by R8 resulting in the
invocations failing.
#minor-release
PiperOrigin-RevId: 601074636
ibaker