Export custom metrics to OTEL collector

Hi!

I am looking for a way to export Telemetry.Metrics — Telemetry.Metrics v1.0.0 metrics to OTEL collector. I know that OpenTelemetry.Tracer — opentelemetry_api v1.3.0 is used for submitting spans/traces, but I can’t find anything for metrics.

Found opentelemetry-erlang/apps/opentelemetry_experimental at main · open-telemetry/opentelemetry-erlang · GitHub and opentelemetry-erlang/apps/opentelemetry_api_experimental at main · open-telemetry/opentelemetry-erlang · GitHub, but these seem to be in experimental stage.

Even just article on how to do this “manually” would be helful.
Thank you for your time!

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