Pause the current operation, then runs a promise, async function, plain function, or operation within a new scope. The calling operation will be resumed (or errored) once call is completed.

Top-level entry point to programs written in Effection. That means that your program should only call main once, and everything the program does is handled from within main including an orderly shutdown. Unlike run, main automatically prints errors that occurred to the console.

An Operation in Effection describes an abstract computation. An operation does not do anything on its own. Rather, it only describes the steps it will take when it runs.