log

type Fields map[string]interface{}

type Level uint8

type Logger interface {
	Info(args ...interface{})
	Infof(format string, args ...interface{})
	Debug(args ...interface{})
	Debugf(format string, args ...interface{})
	Warning(args ...interface{})
	Warningf(format string, args ...interface{})
	Error(args ...interface{})
	Errorf(format string, args ...interface{})
	Panic(args ...interface{})
	Panicf(format string, args ...interface{})
	WithField(key string, value interface{}) Logger
	Fields() Fields
}

type Logrus struct {
	*logrus.Entry
}

type LogrusOptions struct {
}

type Severity uint8

type Stackdriver struct {
	// contains filtered or unexported fields
}

type StackdriverOptions struct {
	LogName  string
	Severity Severity
}