go.opentelemetry.io/otel/api/metric.BatchObserverMust.NewFloat64ValueObserver (method)

one use

	go.opentelemetry.io/otel/api/metric (current package)
		must.go#L176: func (bm BatchObserverMust) NewFloat64ValueObserver(name string, oos ...InstrumentOption) Float64ValueObserver {