presto-parser/src/main/java/io/prestosql/sql/tree/CallArgument.java/CallArgument/toString
class CallArgument:    @Override
    public String toString()
    {
        return toStringHelper(this)
                .add("name", name.orElse(null))
                .add("value", value)
                .omitNullValues()
                .toString();
    }