asana: Access the Asana API

# DO NOT EDIT MANUALLY - This file is autogenerated from Asana API Specs
#' Events
#'
#'
#'  An _event_ is an object representing a change to a resource that was observed
#'  by an event subscription.
#'  
#'  In general, requesting events on a resource is faster and subject to higher
#'  rate limits than requesting the resource itself. Additionally, change events
#'  bubble up - listening to events on a project would include when stories are
#'  added to tasks in the project, even on subtasks.
#'  
#'  Establish an initial sync token by making a request with no sync token.
#'  The response will be a `412` error - the same as if the sync token had
#'  expired.
#'  
#'  Subsequent requests should always provide the sync token from the immediately
#'  preceding call.
#'  
#'  Sync tokens may not be valid if you attempt to go 'backward' in the history
#'  by requesting previous tokens, though re-requesting the current sync token
#'  is generally safe, and will always return the same results.
#'  
#'  When you receive a `412 Precondition Failed` error, it means that the
#'  sync token is either invalid or expired. If you are attempting to keep a set
#'  of data in sync, this signals you may need to re-crawl the data.
#'  
#'  Sync tokens always expire after 24 hours, but may expire sooner, depending on
#'  load on the service.
#' @name asn_events
#' @rdname asn_events
#' @family events
#' @seealso \link{https://asana.com/developers/api-reference/events}
NULL