new_contents: """
  ffs.filesystem
  
  General utilities for working with filesystems
  """
  import os
  
  
  def is_dir(path):
      """
      Predicate to determine if PATH is an existng directory
  
      Arguments:
      - `path`: str or Path
  
      Return: bool
      Exceptions: None
      """
      return os.path.isdir(str(path))
  
  def is_file(path):
      """
      Predicate to determine if PATH is an existng file
  
      Arguments:
      - `path`: str or Path
  
      Return: bool
      Exceptions: None
      """
      return os.path.isfile(str(path))
  
subject: Add ffs.filesystem.