kubernetes/vendor/github.com/grpc-ecosystem/go-grpc-prometheus/client.go

var DefaultClientMetrics …

var UnaryClientInterceptor …

var StreamClientInterceptor …

func init() { … }

// EnableClientHandlingTimeHistogram turns on recording of handling time of
// RPCs. Histogram metrics can be very expensive for Prometheus to retain and
// query. This function acts on the DefaultClientMetrics variable and the
// default Prometheus metrics registry.
func EnableClientHandlingTimeHistogram(opts ...HistogramOption) { … }