parameters: (self)
docstring: Clear all covered matrix cells
docstring_summary: Clear all covered matrix cells
docstring_tokens: Clear all covered matrix cells
function: def _clear_covers(self):
          """Clear all covered matrix cells"""
          self.row_uncovered[:] = True
          self.col_uncovered[:] = True
function_tokens: def _clear_covers ( self ) : self . row_uncovered [ : ] = True self . col_uncovered [ : ] = True