Fires after the value for a specific transient has been set.

The dynamic portion of the hook name, $transient, refers to the transient name.

在一个特定的暂存器的值被设置后触发。

钩子名称的动态部分，$transient, 是指暂存器的名称。

do_action( "set_transient_{$transient}", $value, $expiration, $transient );