# File lib/aws/core/http/request.rb, line 161
        def body
          if @body
            @body
          elsif @body_stream
            @body = @body_stream.read
            if @body_stream.respond_to?(:rewind)
              @body_stream.rewind
            else
              @body_stream = StringIO.new(@body)
            end
            @body
          else
            nil
          end
        end