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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 meth_acl(args):
    ''' Retrieve access control list for given version of a repository method'''
    r = fapi.get_repository_method_acl(args.namespace, args.method,
                                                    args.snapshot_id)
    fapi._check_response_code(r, 200)
    acls = sorted(r.json(), key=lambda k: k['user'])
    return map(lambda acl: '{0}\t{1}'.format(acl['user'], acl['role']), acls)