parameters: (self)
return_statement: return set([a for a in self if a not in self.readKeys])
docstring: return unused keys
docstring_summary: return unused keys
docstring_tokens: return unused keys
function: def _unreadKeys(self):
          """return unused keys"""
          return set([a for a in self if a not in self.readKeys])
function_tokens: def _unreadKeys ( self ) : return set ( [ a for a in self if a not in self . readKeys ] )