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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 create_baseline(tag="baseline", config='root'):
    '''
    Creates a snapshot marked as baseline

    tag
        Tag name for the baseline

    config
        Configuration name.

    CLI Example:

    .. code-block:: bash

        salt '*' snapper.create_baseline
        salt '*' snapper.create_baseline my_custom_baseline
    '''
    return __salt__['snapper.create_snapshot'](config=config,
                                               snapshot_type='single',
                                               description="baseline snapshot",
                                               cleanup_algorithm="number",
                                               userdata={"baseline_tag": tag})