How to use the jumbo.cli.printlogo.jumbo_ascii function in jumbo

def jumbo(ctx, cluster):
    """
    Execute a Jumbo command.
    If no command is passed, start the Jumbo shell interactive mode.
    """

    # Create the shell
    sh = Shell(prompt=click.style('jumbo > ', fg='green') if OS != 'Windows'
               else 'jumbo > ',
               intro=printlogo.jumbo_ascii() +
               '\nJumbo Shell. Enter "help" for list of supported commands.' +
               ' Type "quit" to leave the Jumbo Shell.' +
               click.style('\nJumbo v0.4.4',
                           fg='cyan'))
    # Save the shell in the click context (to modify its prompt later on)
    ctx.meta['jumbo_shell'] = sh.shell
    # Register commands that can be used in the shell
    sh.add_command(create)
    sh.add_command(exit)
    sh.add_command(delete)
    sh.add_command(use)
    sh.add_command(addnode)
    sh.add_command(rmnode)
    sh.add_command(editnode)
    sh.add_command(listclusters)
    sh.add_command(listnodes)

def logo():
    """Print a random ASCII logo.
    """

    click.echo(printlogo.jumbo_ascii())