Dynamic metric list

[GregorGrasselli]

Hi, we have a situation where we are unable to know all the metrics that will be available in advance, and they might also dynamically change while the application is running. I saw TelemetryMetricsPrometheus.Core.Registry.register, which seems like it would solve our problems. However it is undocumented (probably not meant to be part of the interface), so I am reluctant to use it. Any chance it could be made part of the public interface? Are there any known/expected issues with using it in production code?