diagnostics

type Diagnostics interface {
	// Name is the name of the component used in error messages.
	Name() string
	// Timing reports timing info.
	Timing(component, description, detail string, begin, end time.Time) error
	// Severe reports an error that is highly likely to cause problems in tests.
	Severe(err error) error
	// Warning reports a error that is unlikely to cause problems in tests, but
	// that you want to track anyway.
	Warning(err error) error
	// Close closes this diagnostics object.
	Close() error
}