$2\mathrm{.}4$ Two Push Buttons: Electric Generator Load Control $($v$2)$

In this part, we will modify the previous part by implementing policies that enhance the safety of the

plant. The main idea here is that the operators should be aware of the current condition and should not

make simultaneous requests. Modify the code to implement the following criteria. If a machine is run$-$

ning and the other operator makes a request $($pushes the button$),$ the running machine stops immediately.

Furthermore, no machine can be started unless both operators have released their buttons. This implies

that a request made while the other button was pushed will not be honored $($even if the earlier button was

released$).$ Both buttons must be released before any request is processed.