interface Dog { attribute DOMString name; attribute DOMString owner; boolean isMemberOfBreed([TreatNullAs=EmptyString] DOMString breedName); }; interface Dog { attribute DOMString name; attribute DOMString owner; boolean isMemberOfBreed([TreatNullAs=EmptyString] DOMString breedName); }; attribute DOMString name; attribute DOMString owner; boolean isMemberOfBreed([TreatNullAs=EmptyString] DOMString breedName); TreatNullAs