∀ {γ : Type} [inst : SizeOf γ] (toOLeanEntry : Lean.KeyedDeclsAttribute.OLeanEntry) (isBuiltin : Bool) (value : γ),
  sizeOf { toOLeanEntry := toOLeanEntry, isBuiltin := isBuiltin, value := value } =
    1 + sizeOf toOLeanEntry + sizeOf isBuiltin + sizeOf value