mod155.hs:2:10:
    Conflicting exports for ‛id’:
       ‛module M’ exports ‛M.id’
         imported from ‛Prelude’ at mod155.hs:4:1-19
         (and originally defined in ‛GHC.Base’)
       ‛module M’ exports ‛M.id’ defined at mod155.hs:5:1