# File lib/fog/compute/requests/aws/describe_regions.rb, line 39
        def describe_regions(filters = {})
          unless filters.is_a?(Hash)
            Formatador.display_line("[yellow][WARN] describe_regions with #{filters.class} param is deprecated, use describe_regions('region-name' => []) instead[/] [light_black](#{caller.first})[/]")
            filters = {'region-name' => [*filters]}
          end

          response = Excon::Response.new
          region_info = [
            {"regionName"=>"eu-west-1", "regionEndpoint"=>"eu-west-1.ec2.amazonaws.com"},
            {"regionName"=>"us-east-1", "regionEndpoint"=>"us-east-1.ec2.amazonaws.com"}
          ]

          aliases = {'region-name' => 'regionName', 'endpoint' => 'regionEndpoint'}
          for filter_key, filter_value in filters
            aliased_key = aliases[filter_key]
            region_info = region_info.reject{|region| ![*filter_value].include?(region[aliased_key])}
          end

          response.status = 200
          response.body = {
            'requestId'   => Fog::AWS::Mock.request_id,
            'regionInfo'  => region_info
          }
          response
        end