{α : Type} →
  (motive : Lean.Meta.DiscrTree.Trie α → Lean.Meta.DiscrTree.Trie α → Sort u_1) →
    (x x_1 : Lean.Meta.DiscrTree.Trie α) →
      ((vs₁ : Array α) →
          (cs₁ : Array (Lean.Meta.DiscrTree.Key × Lean.Meta.DiscrTree.Trie α)) →
            (vs₂ : Array α) →
              (cs₂ : Array (Lean.Meta.DiscrTree.Key × Lean.Meta.DiscrTree.Trie α)) →
                motive (Lean.Meta.DiscrTree.Trie.node vs₁ cs₁) (Lean.Meta.DiscrTree.Trie.node vs₂ cs₂)) →
        motive x x_1