Retrieve a Changeset by its unique ID.
A Changeset is an individual edit that has been made to a project. Since multiple users can edit a project at the same time, individual Changesets are applied in a sequential fashion. If a Changeset causes a conflict or cannot be applied, it will be rejected. You can examine a Changeset to determine its conflict resolution status.
When checking the status of a Changeset, you can call either RetrieveChangeset or RetrieveCompletedChangeset. Using RetrieveChangeset will give you the immediate status of the Changeset. Using RetrieveCompletedChangeset will delay the response until the Changeset has finished processing.