code: def mkdir(directory, exists_okay):
      
      # Run the mkdir command.
      board_files = files.Files(_board)
      board_files.mkdir(directory, exists_okay=exists_okay)
docs: Create a directory on the board.
  
      Mkdir will create the specified directory on the board.  One argument is
      required, the full path of the directory to create.
  
      Note that you cannot recursively create a hierarchy of directories with one
      mkdir command, instead you must create each parent directory with separate
      mkdir command calls.
  
      For example to make a directory under the root called 'code':
  
        ampy --port /board/serial/port mkdir /code