This package deals with sets of metric labels and lists of label values.

The `value` package contains the types for holding individual metric values (either just a float64 or the numeric state for a histogram).

Returns a runner that updates PromVector values and a channel that each PromVector uses to request an update.

Creates a new PromVector, initializes it from recent TimeSeries data, and schedules it to be updated as time goes on.

Descriptive data for a GCP metric that we may want to report at start-up.

A vector of Prometheus metrics exported from a GCP metric.

What gets sent to request a metric be updated.