Ergonomic options for the typed factory methods. type is injected by the
method name; help defaults to the metric name.
readonly
optional
help: string
Human-readable description (Prometheus HELP). Defaults to the metric name.
readonly
optional
labels: readonly string[]
Label names attachable to observations.
readonly
optional
buckets: readonly number[]
Histogram bucket boundaries (histogram metrics only).
readonly
optional
quantiles: readonly number[]
Summary quantiles (summary metrics only).
readonly
optional
maxSamples: number
Summary only: bounded sample-window size.