Copybara import of the project:
Copybara import of the project:

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5e383556e3f8064c4c58bc4cf31b83cc31c98c67 by Jongwook Choi <wookayin@gmail.com>:

Log rewards statistics in SAC agents

(similar to PPO agents)

COPYBARA_INTEGRATE_REVIEW=https://github.com/deepmind/acme/pull/232 from wookayin:sac-log-reward 5e383556e3f8064c4c58bc4cf31b83cc31c98c67
PiperOrigin-RevId: 459035815
Change-Id: I47181e44776cac8f76ebbbf95fbcf46ccb40c6d7

deepmind/acme,deepmind/acme