Hi! I want be able to see which version number of guix I have, not commit but human-readable version, such as 1.0.0. How to do this?
Once performing `guix pull` I saw it, but now I cannot do it this ways:

# guix describe
Generation 88 May 02 2019 17:18:30 (current)
guix 48f19e6
repository URL: https://git.savannah.gnu.org/git/guix.git
branch: master
commit: 48f19e60c4677e392ee2c23f28098cfcaf9d1710

# guix pull
Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
Building from this channel:
guix https://git.savannah.gnu.org/git/guix.git 48f19e6
Computing Guix derivation for 'x86_64-linux'... |
nothing to be done

How to see guix version: 1.0.0 ?