code: def new(self, boot_system_id):
          # type: (bytes) -> None
          '''
          A method to create a new Boot Record.
  
          Parameters:
           boot_system_id - The system identifier to associate with this Boot
                            Record.
          Returns:
           Nothing.
          '''
          if self._initialized:
              raise Exception('Boot Record already initialized')
  
          self.boot_system_identifier = boot_system_id.ljust(32, b'\x00')
          self.boot_identifier = b'\x00' * 32
          self.boot_system_use = b'\x00' * 197  # This will be set later
  
          self._initialized = Truf new(self, boot_system_id):
          # type: (bytes) -> None
          '''
          A method to create a new Boot Record.
  
          Parameters:
           boot_system_id - The system identifier to associate with this Boot
                            Record.
          Returns:
           Nothing.
          '''
          if self._initialized:
              raise Exception('Boot Record already initialized')
  
          self.boot_system_identifier = boot_system_id.ljust(32, b'\x00')
          self.boot_identifier = b'\x00' * 32
          self.boot_system_use = b'\x00' * 197  # This will be set later
  
          self._initialized = True
docs: A method to create a new Boot Record.
  
          Parameters:
           boot_system_id - The system identifier to associate with this Boot
                            Record.
          Returns:
           Nothing.