(motive : Option Lean.Lsp.LeanDeclIdent → Sort u_1) →
  (x : Option Lean.Lsp.LeanDeclIdent) →
    ((ident : Lean.Lsp.LeanDeclIdent) → motive (some ident)) →
      ((x : Option Lean.Lsp.LeanDeclIdent) → motive x) → motive x