Option, getSome, getSomeOrElse, isNone, isSome, None, Some
atan, cos, floatToInt, intToFloat, log, max, min, pow, sin, tan, toString
average, boolFilter, bursts, burstsSince, const, constIf, count, default, defaultFrom, defined, delay, falling, filter, first, firstEvent, fold, isFirst, last, lift, lift1, lift2, lift3, lift4, lift5, maximum, merge, merge2, merge3, merge4, merge5, merge6, merge7, merge8, mergeUnit, mergeUnit2, mergeUnit3, mergeUnit4, minimum, nil, noEvent, on, period, prev, pure, reduce, resetCount, rising, runtime, sample, slift, slift1, slift2, slift3, slift4, slift5, sum, time, unitIf, zip, zip2, zip3, zip4, zip5