Checkout a content resource for editing. Checkin a content resource. Checkin an external content resource thus replacing the existing working content. Cancels the checkout. Locks a content resource. Unlocks a content resource. Gets the lock status of the specified nodes. Create a snapshot of the specified node(s) in the version store. Gets the version history for the specfied node. Revert a node to the snapshot of the specified version. Delete all snapshot versions of the specified node. Checkout a content resource for editing. Checkin a content resource. Checkin an external content resource thus replacing the existing working content. Cancels the checkout. Locks a content resource. Unlocks a content resource. Gets the lock status of the specified nodes. Create a snapshot of the specified node(s) in the version store. Gets the version history for the specfied node. Revert a node to the snapshot of the specified version. Delete all snapshot versions of the specified node. Provides support for collaborative editing of content.