docs: def _repeat_bytes(byt, rep):
          """
          Get a long number for a byte being repeated for many times. This is part of the effort of optimizing
          performance of angr's memory operations.
  
          :param int byt: the byte to repeat
          :param int rep: times to repeat the byte
          :return: a long integer representing the repeating bytes
          ;rtype: int
          """
  
          if rep == 1:
              return byt
  
          remainder = rep % 2
          quotient = rep // 2
  
          r_ = memset._repeat_bytes(byt, quotient)
          if remainder == 1:
              r = r_ << ((quotient + 1) * 8)
              r |= (r_ << 8) + byt
          else:
              r = r_ << (quotient * 8)
              r |= r_
          return r