Imports go.opentelemetry.io/otel/semconv github.com/go-logr/logr go.opentelemetry.io/otel/api/propagation go.opentelemetry.io/otel/label golang.org/x/time/rate go.opentelemetry.io/otel/api/trace go.opentelemetry.io/otel/api/global Standard library imports context flag fmt net/http sync sync/atomic time