(motive : DoResultPR Unit (Array Lean.Doc.CodeSuggestion) PUnit.{1} → Sort u_1) →
  (r : DoResultPR Unit (Array Lean.Doc.CodeSuggestion) PUnit.{1}) →
    ((a : Unit) → (u : PUnit.{1}) → motive (DoResultPR.pure a u)) →
      ((b : Array Lean.Doc.CodeSuggestion) → (u : PUnit.{1}) → motive (DoResultPR.return b u)) → motive r