Emitted when a page gets deleted.
Target field id.
Target field identifier.
Layout position id for the field instance.
File id containing the page.
Document id.
External document identifier.
When applicable, whether the underlying file component supports multiple selections.
The page associated with this event.
Page id containing the target field.
The originating editor (if available for cell events).
Event type identifier (page.focus or page.blur).
View type (e.g., "mobile") for view-specific changes.
View id for view-specific changes.