如何在laravel中显示true false值的错误信息？

use Illuminate\Support\Facades\Validator;

public function validateData(Request $request)
{
    $validator = Validator::make($request->all(), [
        'is_active' => 'required|boolean',
    ]);

    if ($validator->fails()) {
        // 验证失败，将错误信息存储在会话中
        return redirect()->back()->withErrors($validator)->withInput();
    }

    // 验证通过，继续处理其他逻辑
    // ...
}

<input type="checkbox" name="is_active" value="1" {{ old('is_active') ? 'checked' : '' }}>
@error('is_active')
    <div class="alert alert-danger">{{ $message }}</div>
@enderror