c# - How to detect double-keyboard with ReactiveUI -

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how detect double-key board (like double key-enter) reactiveui

how this:

doubleenter = somewindow.events().keyup     .where(x => x.eventargs.key == key.enter)     .buffer(timespan.frommilliseconds(650), rxapp.mainthreadscheduler)     .where(x => x.length > 1);

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