func init() {
	SetLogger(&log.Logger)
	logging.IncludeSDKKeyInLogFields(true)
}
init overrides the Optimizely SDK logger with the default zerolog logger.
package optimizely
import (
	"github.com/rs/zerolog"
	"github.com/rs/zerolog/log"
	"github.com/optimizely/go-sdk/pkg/logging"
)
var levelMap = map[logging.LogLevel]zerolog.Level{
	logging.LogLevelDebug:   zerolog.DebugLevel,
	logging.LogLevelInfo:    zerolog.InfoLevel,
	logging.LogLevelWarning: zerolog.WarnLevel,
	logging.LogLevelError:   zerolog.ErrorLevel,
}