def METHOD_NAME(self, logging_store: MutableLoggingStore):
    zarray_value = bytes()
    logging_store['chl/.zarray'] = zarray_value
    self.assertEqual({'chl/.zattrs',
                      'chl/.zarray'},
                     set(self.original_store.keys()))
    del logging_store['chl/.zarray']
    self.assertEqual({'chl/.zattrs'},
                     set(self.original_store.keys()))