UniqKey of a new element, up to 128 bytes
Content of a new element, up to 4096 bytes
Optional parameter, default value: false. Whether the element is deleted when when the user who submitted this new element is disconnected from the chat room or leaves the chat room.
callback for the result
Optional, account to which an element belongs. By default, no argument is taken and the element belongs to the current user. Administrators can assign specified elements to other valid accounts.