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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 write(self, bytes):
 """Write data to the memory. .. note:: Writes beyond the specified memory range will be truncated and a :py:exc:`.TruncationWarning` is produced. These warnings can be converted into exceptions using :py:func:`warnings.simplefilter`:: Parameters bytes : :py:class:`bytes` Data to write to the memory as a bytestring. Returns ------- int Number of bytes written. """

        if self.address + len(bytes) > self._end_address:
            n_bytes = self._end_address - self.address

            warnings.warn("write truncated from {} to {} bytes".format(
                len(bytes), n_bytes), TruncationWarning, stacklevel=3)
            bytes = bytes[:n_bytes]

        if len(bytes) == 0:
            return 0

        # Perform the write and increment the offset
        self._parent._perform_write(self.address, bytes)
        self._offset += len(bytes)
        return len(bytes)