convenience.go
func (r *Registry) Timer(name string, tags []string) *Timer {
	factory := func() interface{} { return NewTimer() }
	return r.fetchTimer(name, tags, factory)
}
func (r *Registry) Timer(name string, tags []string) *Timer {
	factory := func() interface{} { return NewTimer() }
	return r.fetchTimer(name, tags, factory)
}
func ( r * Registry ) Timer ( name string , tags [ ] string ) * Timer { factory := func ( ) interface { } { return NewTimer ( ) } return r . fetchTimer ( name , tags , factory ) }
// Timer fetches an instrument from the registry or creates a new one.
//
// If another instrument type is already registered with the same
// name/tags, a blank one will be returned and an error
// will be logged to the Errors() channel.
Timer fetches an instrument from the registry or creates a new one . If another instrument type is already registered with the same name / tags a blank one will be returned and an error will be logged to the Errors () channel .