bsl::unordered_set<Attribute, AttributeHash>::operator=

Assign to this object the value resulting from first clearing this unordered set and then inserting each value_type object in the specified values initializer list, ignoring those keys having a value equivalent to that which appears earlier in the list; return a reference providing modifiable access to this object. This method requires that the (template parameter) type KEY type be copy‐insertable into this set (see {Requirements on KEY}).