Add selection tasks, to match protocol in paper and simplify seeding of random generators. Also, set default max_experiments=0.
Add selection tasks, to match protocol in paper and simplify seeding of random generators. Also, set default max_experiments=0.

PiperOrigin-RevId: 298553060

google-research/google-research,google-research/google-research,google-research/google-research,google-research/google-research,google-research/google-research,google-research/google-research,google-research/google-research,google-research/google-research,google-research/google-research,google-research/google-research,google-research/google-research