code: def list_roots():
      '''
      Return all of the files names in all available environments
      '''
      ret = {}
      for saltenv in __opts__['pillar_roots']:
          ret[saltenv] = []
          ret[saltenv].append(list_env(saltenv))
      return ref list_roots():
      '''
      Return all of the files names in all available environments
      '''
      ret = {}
      for saltenv in __opts__['pillar_roots']:
          ret[saltenv] = []
          ret[saltenv].append(list_env(saltenv))
      return ret
docs: Return all of the files names in all available environments