{motive_1 : Lean.Server.Test.Runner.Client.HighlightedMsgEmbed → Sort u} →
  (t : Lean.Server.Test.Runner.Client.HighlightedMsgEmbed) →
    t.ctorIdx = 1 →
      ((a : Lean.Server.Test.Runner.Client.InteractiveGoal) →
          motive_1 (Lean.Server.Test.Runner.Client.HighlightedMsgEmbed.goal a)) →
        motive_1 t