sumLexer top-level property
identifies sums
Implementation
final Parser<SumParser> sumLexer = (string('sum()') | string('.sum()')).map(
(_) => SumParser(),
);
sumLexer property
identifies sums
final Parser<SumParser> sumLexer = (string('sum()') | string('.sum()')).map(
(_) => SumParser(),
);