As a simple example, let us create a generic function called whoami and some tagged methods to dispatch to.
作为一个简单的例子，我们来创建一个称为whoami的泛型函数以及一些要被分派标记的方法。
In our case, you could find a generic function that creates the XMLHttpRequest instance and calls its open and send methods.
在我们的示例中，您能找到一个泛型函数，此函数能创建XMLHttpRequest实例和调用实例的open和send方法。
Class Code the Class Code register is read-only and is used to identify the generic function of the device and, in some cases, a specific register-level programming interface.
本寄存器是只读的，被用来标识该设备类属的功能，而且在有些情况下，是一个寄存器级的编程接口。
Class Code the Class Code register is read-only and is used to identify the generic function of the device and, in some cases, a specific register-level programming interface.
本寄存器是只读的，被用来标识该设备类属的功能，而且在有些情况下，是一个寄存器级的编程接口。
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