[tool-cancel-event.https.html]
  [ToolCancelEvent constructor with default event init dictionary]
    expected: FAIL

  [ToolCancelEvent constructor with an event init dictionary]
    expected: FAIL

  [ontoolcancel is invoked for synthetic toolcancel events dispatched at ModelContext]
    expected: FAIL

  [ontoolcancel is invoked when a tool invocation is canceled]
    expected: FAIL