# File lib/faraday/error.rb, line 6
      def initialize(ex, response = nil)
        @wrapped_exception = nil
        @response = response

        if ex.respond_to?(:backtrace)
          super(ex.message)
          @wrapped_exception = ex
        elsif ex.respond_to?(:each_key)
          super("the server responded with status #{ex[:status]}")
          @response = ex
        else
          super(ex.to_s)
        end
      end