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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 _handle_list(reclist):
 """ Return list of resources that have access_controller defined. """

    ret = []
    for item in reclist:
        recs = _handle_resource_setting(item)
        ret += [resource for resource in recs if resource.access_controller]
    return ret