Decouple otlp/otlpmetric/otlpmetricgrpc from otlp/internal and otlp/otlpmetric/internal using gotmp#4404
Merged
MrAlias merged 5 commits intoopen-telemetry:mainfrom MrAlias:gotmpl-otlpmetricgrpcAug 4, 2023
+8,514-17
