presto-main/src/main/java/io/prestosql/operator/scalar/ScalarFunctionImplementation.java/ScalarFunctionImplementation/ScalarFunctionImplementation
class ScalarFunctionImplementation:    public ScalarFunctionImplementation(
            boolean nullable,
            List<ArgumentProperty> argumentProperties,
            MethodHandle methodHandle,
            Optional<MethodHandle> instanceFactory)
    {
        this(ImmutableList.of(new ScalarImplementationChoice(nullable, argumentProperties, methodHandle, instanceFactory)));
    }