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export function addNode(fn) {

process.on('exit', () => {

return fn();

});

/**

* on the following events,

* the process will not end if there are

* event-handlers attached,

* therefore we have to call process.exit()

*/

process.on('beforeExit', () => {

return fn().then(() => process.exit());

});

// catches ctrl+c event

process.on('SIGINT', () => {

return fn().then(() => process.exit());

});

// catches uncaught exceptions

process.on('uncaughtException', err => {

return fn()

.then(() => {

console.trace(err);

process.exit(101);

});

});

}