instrument.rb in opentelemetry-metrics-api-0.2.0

- old
+ new

@@ -4,9 +4,10 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
 require 'opentelemetry/metrics/instrument/counter'
 require 'opentelemetry/metrics/instrument/histogram'
+require 'opentelemetry/metrics/instrument/gauge'
 require 'opentelemetry/metrics/instrument/observable_counter'
 require 'opentelemetry/metrics/instrument/observable_gauge'
 require 'opentelemetry/metrics/instrument/observable_up_down_counter'
 require 'opentelemetry/metrics/instrument/up_down_counter'
 