func (r *Reporter) Flush() error {
	r.log(strings.Join(r.metrics, " "))
	r.metrics = r.metrics[:0]
	return nil
}
func (r *Reporter) Flush() error {
	r.log(strings.Join(r.metrics, " "))
	r.metrics = r.metrics[:0]
	return nil
}
func ( r * Reporter ) Flush ( ) error { r . log ( strings . Join ( r . metrics , " " ) ) r . metrics = r . metrics [ : 0 ] return nil }
// Flush implements instruments.Reporter
Flush implements instruments . Reporter