parameters: (self)
docstring: If currently sharing mask, make a copy.
docstring_summary: If currently sharing mask, make a copy.
docstring_tokens: If currently sharing mask make a copy .
function: def unshare_mask (self):
          "If currently sharing mask, make a copy."
          if self._shared_mask:
              self._mask = make_mask (self._mask, copy=1, flag=0)
              self._shared_mask = 0
function_tokens: def unshare_mask ( self ) : if self . _shared_mask : self . _mask = make_mask ( self . _mask , copy = 1 , flag = 0 ) self . _shared_mask = 0