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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 line_is_interesting(self, line):
 """Return True, False, or None. True means always output, False means never output, None means output only if there are interesting lines. """

        if line.startswith('Name'):
            return None
        if line.startswith('--------'):
            return None
        if line.startswith('TOTAL'):
            return None
        if '100%' in line:
            return False
        if line == '\n':
            return None if self._last_line_was_printable else False
        return True