Sidekicks

Sidekicks are your helpers. They are your classes or functions that don't extend from Jig which you use more for supporting roles. You might use sidekicks to create a custom lock, to define a berry, to make a shared helper like expect, or even to store your server code on-chain. When you call a method on a sidekick, nothing gets recorded to Bitcoin. But you can call sidekicks from inside jigs and even from your own app. There are no restrictions on what kinds of parameters can be passed into or returned from sidekicks.