Part of the Monad instance for Fantasy Land 2.x+. See the chain method for details.
forall M, a, b:
(M a).((a) => M b) => M b
where M is ChainPart of the Monad instance for Fantasy Land 2.x+. See the chain method for details.
'fantasy-land/chain'(transformation) {
return this.chain(transformation);
}