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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 add_status_line(self, label):
 """Add a status bar line to the table. This function returns the status bar and it can be modified from this return value. """

        status_line = StatusBar(label,
                                self._sep_start, self._sep_end,
                                self._fill_char)
        self._lines.append(status_line)
        return status_line