The session ID for this notification.
The URI of the focused document.
The version number of the document.
The current cursor position.
The portion of the file currently visible in the editor viewport.
Optional_The _meta property is reserved by ACP to allow clients and agents to attach additional metadata to their interactions. Implementations MUST NOT make assumptions about values at these keys.
See protocol docs: Extensibility
Notification sent when a file becomes the active editor tab.