code: def standard_block(self, _bytes):
          
          self.out(self.BLOCK_STANDARD)  # Standard block ID
          self.out(self.LH(1000))  # 1000 ms standard pause
          self.out(self.LH(len(_bytes) + 1))  # + 1 for CHECKSUM byte
  
          checksum = 0
          for i in _bytes:
              checksum ^= (int(i) & 0xFF)
              self.out(i)
  
          self.out(checksum)
docs: Adds a standard block of bytes