Blazor InputText: conditionally rendering an attribute

Blazor vRC1

I'm looking for a straightforward technique on how to conditionally render an attribute within an <InputText> (or any of the input components for that matter). This used to be simple in MVC Razor, where you'd just write the conditional logic within the @(...) statement. Now, writing @(...) has different meaning in the Razor syntax.

For example, I'd like to conditionally output the autofocus HTML attribute for InputText.

<InputText  @bind-Value="@TextProperty" @(MyModel.isAutoFocus ? "autofocus" : "") <-  This is invalid razor syntax!/>