umount-test-opts

 1(list (channel
 2        (name 'nmeum)
 3        (url "https://github.com/nmeum/guix-channel.git")
 4        (branch "master")
 5        (commit
 6          "b821950bb6155c6f3d322280645071edc2bff1f2")
 7        (introduction
 8          (make-channel-introduction
 9            "808a00792c114c5c1662e8b1a51b90a2d23f313a"
10            (openpgp-fingerprint
11              "514E 833A 8861 1207 4F98  F68A E447 3B6A 9C05 755D"))))
12      (channel
13        (name 'guix)
14        (url "https://git.guix.gnu.org/guix.git")
15        (branch "master")
16        (commit
17          "aff9ce37616997647e7124edb0b3636ef98be68b")
18        (introduction
19          (make-channel-introduction
20            "9edb3f66fd807b096b48283debdcddccfea34bad"
21            (openpgp-fingerprint
22              "BBB0 2DDF 2CEA F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA")))))