C# CSharp debounce a function call

i need to debounce the delegate call in the following function. a class V has a float value f and a delegate d. every time f is changed, d gets executed. if f is changed too quickly, it should not be executed. BUT the last change should be executed every time. debounce should be possible with a certain internal time treshold and also by a extern clock/counter. in the given [login to view URL] setup, only the last call should have been executed.