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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def call(method, *args, **kwargs):
    '''
    Execute arbitrary methods from the NAPALM library.
    To see the expected output, please consult the NAPALM documentation.

    .. note::

        This feature is not recommended to be used in production.
        It should be used for testing only!

    CLI Example:

    .. code-block:: bash

        salt '*' napalm.call get_lldp_neighbors
        salt '*' napalm.call get_firewall_policies
        salt '*' napalm.call get_bgp_config group='my-group'
    '''
    clean_kwargs = {}
    for karg, warg in six.iteritems(kwargs):
        # remove the __pub args
        if not karg.startswith('__pub_'):
            clean_kwargs[karg] = warg
    return salt.utils.napalm.call(
        napalm_device,  # pylint: disable=undefined-variable
        method,
        *args,
        **clean_kwargs
    )