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

          response = Excon::Response.new

          key_set = self.data[:key_pairs].values

          aliases = {'fingerprint' => 'keyFingerprint', 'key-name' => 'keyName'}
          for filter_key, filter_value in filters
            aliased_key = aliases[filter_key]
            key_set = key_set.reject{|key_pair| ![*filter_value].include?(key_pair[aliased_key])}
          end

          response.status = 200
          response.body = {
            'requestId' => Fog::AWS::Mock.request_id,
            'keySet'    => key_set.map do |key_pair|
              key_pair.reject {|key,value| !['keyFingerprint', 'keyName'].include?(key)}
            end
          }
          response
        end