# File ruby/bstream.rb, line 295
        def write_int8_array(arg)
          aa = arg.inject([]) {|result,i| 
                result << (i & 0xffff_ffff)
                result << ((i >> 32) & 0xffff_ffff)
          }
          return writes( [T_ARRAY, T_INTEGER8, arg.size].concat(aa).pack("CCVV*") )
        end