parameters: (self, tree)
return_statement: return thiskeys.issuperset(frozenset(tree.keys()))
docstring: x.issubset(tree) -> True if every element in tree is in x
docstring_summary: x.issubset(tree) -> True if every element in tree is in x
docstring_tokens: x . issubset ( tree ) - > True if every element in tree is in x
function: def issuperset(self, tree):
          """ x.issubset(tree) -> True if every element in tree is in x """
          thiskeys = frozenset(self.keys())
          return thiskeys.issuperset(frozenset(tree.keys()))
function_tokens: def issuperset ( self , tree ) : thiskeys = frozenset ( self . keys ( ) ) return thiskeys . issuperset ( frozenset ( tree . keys ( ) ) )