/**
 * Possible change sources. Here are the predefined sources.
 * It can also be other string if the change source can't fall into these sources.
 */
export declare enum CompatibleChangeSource {
    /**
     * Content changed by auto link
     */
    AutoLink = "AutoLink",
    /**
     * Content changed by create link
     */
    CreateLink = "CreateLink",
    /**
     * Content changed by format
     */
    Format = "Format",
    /**
     * Content changed by image resize
     */
    ImageResize = "ImageResize",
    /**
     * Content changed by paste
     */
    Paste = "Paste",
    /**
     * Content changed by setContent API
     */
    SetContent = "SetContent",
    /**
     * Content changed by cut operation
     */
    Cut = "Cut",
    /**
     * Content changed by drag & drop operation
     */
    Drop = "Drop",
    /**
     * Insert a new entity into editor
     */
    InsertEntity = "InsertEntity",
    /**
     * Editor is switched to dark mode, content color is changed
     */
    SwitchToDarkMode = "SwitchToDarkMode",
    /**
     * Editor is switched to light mode, content color is changed
     */
    SwitchToLightMode = "SwitchToLightMode",
    /**
     * List chain reorganized numbers of lists
     */
    ListChain = "ListChain",
    /**
     * Keyboard event, used by Content Model.
     * Data of this event will be the key code number
     */
    Keyboard = "Keyboard"
}