All classes that implement LoggerInterface in Service Container 7
- class \Drupal\service_container\Logger\LoggerBase implements LoggerInterface
- class \Drupal\service_container\Logger\LoggerChannel implements LoggerChannelInterface
- class \Drupal\service_container\Logger\WatchdogLogger implements LoggerInterface
- class \Psr\Log\AbstractLogger implements LoggerInterface
- class \Psr\Log\NullLogger