Part of the Bifunctor instance for Fantasy Land 2.x+. See the bimap method for details.
forall F, a, b, c, d:
(F a b).((a) => c, (b) => d) => F c d
where F is BifunctorPart of the Bifunctor instance for Fantasy Land 2.x+. See the bimap method for details.
'fantasy-land/bimap'(f, g) {
return this.bimap(f, g);
}