T_METBY(INTERVAL('2010-02-10T05:29:20.073225Z', '2010-10-07'), INTERVAL(starts_at, ends_at))
t_metby(INTERVAL('2010-02-10T05:29:20.073225Z','2010-10-07'), INTERVAL(starts_at,ends_at))
{"op":"t_metby","args":[{"interval":["2010-02-10T05:29:20.073225Z","2010-10-07"]},{"interval":[{"property":"starts_at"},{"property":"ends_at"}]}]}