nettrace

type Trace interface {
	// NewChild creates a new trace, that is a child of this one.
	NewChild(family, title string) Trace

	// Link to another trace with the given message.
	Link(other Trace, msg string)

	// SetMaxEvents sets the maximum number of events that will be stored in
	// the trace. It must be called right after initialization.
	SetMaxEvents(n int)

	// SetError marks that the trace was for an error event.
	SetError()

	// Printf adds a message to the trace.
	Printf(format string, a ...any)

	// Errorf adds a message to the trace, marks it as an error, and returns
	// an error for it.
	Errorf(format string, a ...any) error

	// Finish marks the trace as complete.
	// The trace should not be used after calling this method.
	Finish()
}