func (info Scalar) Count(e *Config, key label.Key) {
	data := &Int64Data{Info: &info, key: nil}
	e.subscribe(key, data.count)
}
Count creates a new metric based on the Scalar information that counts
the number of times the supplied int64 measure is set.
Metrics of this type will use Int64Data.
package metric
import (
	"github.com/govim/govim/cmd/govim/internal/golang_org_x_tools/event/keys"
	"github.com/govim/govim/cmd/govim/internal/golang_org_x_tools/event/label"
)
type Scalar struct {
	Name string
	Description string
	Keys []label.Key
}
type HistogramInt64 struct {
	Name string
	Description string
	Keys []label.Key
	Buckets []int64
}
type HistogramFloat64 struct {
	Name string
	Description string
	Keys []label.Key
	Buckets []float64
}