function getCPUInfo() {
    return new Promise((resolve) => {
        resolve();
    })
    .then(() => {
        console.log("Gathering CPU information...");
        return si.cpu()
        // .then(data => cpuInfo = data) - no need for this, the promise will resolve with "data"
        .catch(err => console.log(err));
    })
    .then(() => {
        console.log("here");
    });
}

getCPUInfo().then((cpuInfo) => console.log(cpuInfo));