Method add

packages/experimental/src/EventGroup.ts:50–50

* Add an `Event` to the `EventGroup`.

(options: {
    readonly tag: Tag
    readonly primaryKey: (payload: Schema.Schema.Type<Payload>) => string
    readonly payload?: Payload
    readonly success?: Success
    readonly error?: Error
  })

   * Add an `Event` to the `EventGroup`.
   */
  add<
    Tag extends string,
    Payload extends Schema.Schema.Any = typeof Schema.Void,
    Success extends Schema.Schema.Any = typeof Schema.Void,