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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 sis_metadata(self):
 """Return Olympus SIS metadata from SIS and INI tags as dict."""

        if not self.is_sis:
            return None
        tags = self.pages[0].tags
        result = {}
        try:
            result.update(tags['OlympusINI'].value)
        except Exception:
            pass
        try:
            result.update(tags['OlympusSIS'].value)
        except Exception:
            pass
        return result