code: def files(self, absolute=False):
          
  
          _paths = []
  
          for arg in self.all:
              for path in _expand_path(arg):
                  if os.path.exists(path):
                      if absolute:
                          _paths.append(os.path.abspath(path))
                      else:
                          _paths.append(path)
  
          return _paths
docs: Returns an expanded list of all valid paths that were passed in.