You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: stats_engine.rb
    path of file: ./repos/newrelic-ruby-agent/lib/new_relic/agent
    
    the code of the file until where you have to start completion: # This file is distributed under New Relic's license terms.
# See https://github.com/newrelic/newrelic-ruby-agent/blob/main/LICENSE for complete details.
# frozen_string_literal: true

require 'new_relic/agent/
    
      def record_unscoped_metrics(state, metric_names, value = nil, aux = nil, &blk)
        txn = state.current_transaction
        if txn
          txn.metrics.record_unscoped(metric_names, value, aux, &blk)
        else
          specs = coerce_to_metric_spec_array(metric_names, nil)
          with_stats_lock do
            @stats_hash.record(specs, value, aux, &blk)
          end
        end