code: def all(self, paths, access=None, recursion=False):
          
          self.__init__()
          self.access = access
          self.filetype = 'all'
          self.paths = paths
          self.recursion = recursion
  
          return _sorter(self._generator_other())
docs: Iterates over `paths` (which may consist of files and/or directories).
          Removes duplicates and returns list of valid paths meeting access
          criteria.