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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 sdb(opts, functions=None, whitelist=None, utils=None):
    '''
    Make a very small database call
    '''
    if utils is None:
        utils = {}

    return LazyLoader(
        _module_dirs(opts, 'sdb'),
        opts,
        tag='sdb',
        pack={
            '__sdb__': functions,
            '__opts__': opts,
            '__utils__': utils,
            '__salt__': minion_mods(opts, utils),
        },
        whitelist=whitelist,
    )