I want to get all my mega.nz account folders names

Question

I'm pretty new on Python and mega.nz api and I want to get all of my mega folder NAMES. I done this:

files = m.get_files()
print(files)

And my output is this:

'5Xxl1YpK': {'h': '5Xxl1YpK', 'p': '5apkxBRK', 'u': 'HeQAbozUSnY', 't': 1, 'a': {'n': 'MAIN'}, 'k': (236358726, 3714021502, 3609314937, 957702177), 'ts': 1649753591, 'shared_folder_key': (1341100632, 611479631, 4161937411, 5464436), 'key': (236358726, 3714021502, 3609314937, 957702177)}

I just want the name of de folder ("MAIN") and i don't know how to get it because it's not a normal dictionary. Thank's for help !