Function fromPull

repos/effect/packages/effect/src/Channel.ts:368–371

(
  effect: Effect.Effect<Pull.Pull<OutElem, OutErr, OutDone, EnvX>, EX, Env>
)

 * const channel = Channel.fromPull(Effect.sync(() => {
 *   let emitted = false
 *   return Effect.suspend(() => {
 *     if (emitted) return Cause.done()
 *     emitted = true
 *     return Effect.succeed(42)
 *   })
 * }))
 * await Effect.runPromise(Channel.runCollect(channel)) // => [42]