@Override
        public Trait createTrait(ShapeId target, Node value) {
            Builder builder = builder().sourceLocation(value);
            ObjectNode objectNode = value.expectObjectNode();
            builder.name(objectNode.expectStringMember(NAME).getValue());
            SigV4Trait result = builder.build();
            result.setNodeCache(objectNode);
            return result;
        }
@return Gets the service signing name.
smithy-aws-traits/src/main/java/software/amazon/smithy/aws/traits/auth/SigV4Trait.java