Expression to load a single package from a git repository

      can anyone point me to a (Metacello?) expression to load a single package from a git repository (I have no project, or baseline, or configuration defined)?   The repository is a collection of packages that are supposed to be loaded one by one, on demand (e.g. independent examples or exercises).

 

    I am using Pharo 7 (on Pharo 6 I used to do this with IcebergRepositoryCreator and #updatePackage: which does not exist in Pharo 7).    

  Thanks in advance,

Yours,

Alejandro