How to use the molecule.command.base._get_subcommand function in molecule

def login(ctx, host, scenario_name):  # pragma: no cover
    """ Log in to one instance. """
    args = ctx.obj.get('args')
    subcommand = base._get_subcommand(__name__)
    command_args = {'subcommand': subcommand, 'host': host}

    s = scenarios.Scenarios(base.get_configs(args, command_args), scenario_name)
    for scenario in s.all:
        base.execute_subcommand(scenario.config, subcommand)

def check(ctx, scenario_name, parallel):  # pragma: no cover
    """
    Use the provisioner to perform a Dry-Run (destroy, dependency, create,
    prepare, converge).
    """
    args = ctx.obj.get('args')
    subcommand = base._get_subcommand(__name__)
    command_args = {'parallel': parallel, 'subcommand': subcommand}

    if parallel:
        util.validate_parallel_cmd_args(command_args)

    base.execute_cmdline_scenarios(scenario_name, args, command_args)

def converge(ctx, scenario_name, ansible_args):  # pragma: no cover
    """
    Use the provisioner to configure instances (dependency, create, prepare
    converge).
    """

    args = ctx.obj.get('args')
    subcommand = base._get_subcommand(__name__)
    command_args = {'subcommand': subcommand}

    base.execute_cmdline_scenarios(scenario_name, args, command_args, ansible_args)

def create(ctx, scenario_name, driver_name):  # pragma: no cover
    """ Use the provisioner to start the instances. """
    args = ctx.obj.get('args')
    subcommand = base._get_subcommand(__name__)
    command_args = {'subcommand': subcommand, 'driver_name': driver_name}

    base.execute_cmdline_scenarios(scenario_name, args, command_args)

def prepare(ctx, scenario_name, driver_name, force):  # pragma: no cover
    """
    Use the provisioner to prepare the instances into a particular starting
    state.
    """
    args = ctx.obj.get('args')
    subcommand = base._get_subcommand(__name__)
    command_args = {
        'subcommand': subcommand,
        'driver_name': driver_name,
        'force': force,
    }

    base.execute_cmdline_scenarios(scenario_name, args, command_args)

def side_effect(ctx, scenario_name):  # pragma: no cover
    """ Use the provisioner to perform side-effects to the instances. """
    args = ctx.obj.get('args')
    subcommand = base._get_subcommand(__name__)
    command_args = {'subcommand': subcommand}

    base.execute_cmdline_scenarios(scenario_name, args, command_args)

def verify(ctx, scenario_name):  # pragma: no cover
    """ Run automated tests against instances. """
    args = ctx.obj.get('args')
    subcommand = base._get_subcommand(__name__)
    command_args = {'subcommand': subcommand}

    base.execute_cmdline_scenarios(scenario_name, args, command_args)

def lint(ctx, scenario_name):  # pragma: no cover
    """ Lint the role (dependency, lint). """
    args = ctx.obj.get('args')
    subcommand = base._get_subcommand(__name__)
    command_args = {'subcommand': subcommand}

    base.execute_cmdline_scenarios(scenario_name, args, command_args)