(motive : Option (Lean.Doc.Block Lean.ElabInline Lean.ElabBlock) → Sort u_1) →
  (x : Option (Lean.Doc.Block Lean.ElabInline Lean.ElabBlock)) →
    (Unit → motive none) → ((a : Lean.Doc.Block Lean.ElabInline Lean.ElabBlock) → motive (some a)) → motive x