Asp.net core ExceptionDetailsProvider（在Asp网络核心中）

我想实现自定义developerCeptionPageMiddleware，因为它是一个开源项目，我找不到它的实现细节

private Task DisplayRuntimeException(HttpContext context, Exception ex)
{
            var request = context.Request;

            var model = new ErrorPageModel
            {
                Options = _options,
                ErrorDetails = _exceptionDetailsProvider.GetDetails(ex), // NEED SOURCE CODE
                Query = request.Query,
                Cookies = request.Cookies,
                Headers = request.Headers
            };

            var errorPage = new ErrorPage(model);
            return errorPage.ExecuteAsync(context);
}

ErrorDetails = _exceptionDetailsProvider.GetDetails(ex)

请提供实施详情，以供参考

private Task DisplayRuntimeException(HttpContext context, Exception ex)
{
            var request = context.Request;

            var model = new ErrorPageModel
            {
                Options = _options,
                ErrorDetails = _exceptionDetailsProvider.GetDetails(ex), // NEED SOURCE CODE
                Query = request.Query,
                Cookies = request.Cookies,
                Headers = request.Headers
            };

            var errorPage = new ErrorPage(model);
            return errorPage.ExecuteAsync(context);
}

ErrorDetails = _exceptionDetailsProvider.GetDetails(ex)

包括完整的实现（微软的开源项目）