up_down_counter.rb in opentelemetry-metrics-sdk-0.3.0

- old
+ new

@@ -22,10 +22,10 @@
           # @param [Numeric] amount The amount to be added, can be positive, negative or zero.
           # @param [Hash{String => String, Numeric, Boolean, Array<String, Numeric, Boolean>}] attributes
           #   Values must be non-nil and (array of) string, boolean or numeric type.
           #   Array values must not contain nil elements and all elements must be of
           #   the same basic type (string, numeric, boolean).
-          def add(amount, attributes: nil)
+          def add(amount, attributes: {})
             update(amount, attributes)
             nil
           rescue StandardError => e
             OpenTelemetry.handle_error(exception: e)
             nil