∀ (elimApp : Lean.Expr) (elimArgs : Array Lean.Expr) (motive : Lean.MVarId) (alts : Array Lean.Elab.Tactic.ElimApp.Alt)
  (others : Array Lean.MVarId) (complexArgs : Array Lean.Expr),
  sizeOf
      { elimApp := elimApp, elimArgs := elimArgs, motive := motive, alts := alts, others := others,
        complexArgs := complexArgs } =
    1 + sizeOf elimApp + sizeOf elimArgs + sizeOf motive + sizeOf alts + sizeOf others + sizeOf complexArgs