General

Shortcuts to simplify imports:

• import cats._ imports all of Cats’ type classes in one go;
• import cats.instances.all._ imports all of the type class instances for the standard library in one go;
• import cats.syntax.all._ imports all of the syntax in one go;
• import cats.implicits._ imports all of the standard type class instances and all of the syntax in one go.

The easiest way to import:

import cats._
import cats.implicits._