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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def new(self):
        # type: () -> None
        '''
        A method to create a new UDF File Set Descriptor.

        Parameters:
         None.
        Returns:
         Nothing.
        '''
        if self._initialized:
            raise pycdlibexception.PyCdlibInternalError('UDF File Set Descriptor already initialized')

        self.desc_tag = UDFTag()
        self.desc_tag.new(256)  # FIXME: we should let the user set serial_number

        self.recording_date = UDFTimestamp()
        self.recording_date.new()

        self.domain_ident = UDFEntityID()
        self.domain_ident.new(0, b'*OSTA UDF Compliant', b'\x02\x01\x03')

        self.root_dir_icb = UDFLongAD()
        self.root_dir_icb.new(2048, 2)

        self.file_set_num = 0
        self.log_vol_char_set = _unicodecharset()
        self.log_vol_ident = _ostaunicode_zero_pad('CDROM', 128)
        self.file_set_char_set = _unicodecharset()
        self.file_set_ident = _ostaunicode_zero_pad('CDROM', 32)
        self.copyright_file_ident = b'\x00' * 32  # FIXME: let the user set this
        self.abstract_file_ident = b'\x00' * 32  # FIXME: let the user set this

        self._initialized = True