I've a problem with accessing a specific (or any) key in a CFDictionary. 
Honestly I don't really get the way you need to do this in Swift and I think it's overly complicated...

My Code:

```
if let session = DASessionCreate(kCFAllocatorDefault) {
let mountedVolumes = FileManager.default.mountedVolumeURLs(includingResourceValuesForKeys: [], options: [])!
for volume in mountedVolumes {
    if let disk = DADiskCreateFromVolumePath(kCFAllocatorDefault, session, volume as CFURL) {
        let diskinfo = DADiskCopyDescription(disk);   

        var volumeValue = CFDictionaryGetValue(diskinfo, <#T##key: UnsafeRawPointer!##UnsafeRawPointer!#>)

    }
}

```

What I want to achieve: Get the Value for the Key or field *DAVolumeNetwork* into the variable *volumeValue*.
I guess I need to pass the *kDADiskDescriptionVolumeNetworkKey* to the *CFDictionaryGetValue* Method? How do I achieve this?