WorkDoneProgressBegin

Controls if a cancel button should show to allow the user to cancel the long running operation. Clients that don't support cancellation are allowed to ignore the setting.

Optional, more detailed associated progress message. Contains complementary information to the title. Examples: "3/25 files", "project/src/module2", "node_modules/some_dep". If unset, the previous progress message (if any) is still valid.

Optional progress percentage to display (value 100 is considered 100%). If not provided infinite progress is assumed and clients are allowed to ignore the percentage value in subsequent in report notifications. The value should be steadily rising. Clients are free to ignore values that are not following this rule. The value range is [0, 100].

Mandatory title of the progress operation. Used to briefly inform about the kind of operation being performed. Examples: "Indexing" or "Linking dependencies".