function either.getLeftSemigroupimport { either } from "https://deno.land/x/fun@v2.0.0-alpha.6/mod.ts"; const { getLeftSemigroup } = either; getLeftSemigroup<E = never, A = never>(SE: Semigroup<E>): Semigroup<Either<E, A>>Type ParametersoptionalE = neveroptionalA = neverParametersSE: Semigroup<E>ReturnsSemigroup<Either<E, A>>