code: def read_vint32(self):
          
          result = 0
          count = 0
          while True:
              if count > 4:
                  raise ValueError("Corrupt VarInt32")
  
              b = self.read_byte()
              result = result | (b & 0x7F) << (7 * count)
              count += 1
  
              if not b & 0x80:
                  return result
docs: This seems to be a variable length integer ala utf-8 style