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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 get_domain_list(list_name):
    '''
    Retrieves a specific policy domain name list.

    list_name(str): The name of the specific policy domain name list to retrieve.

    CLI Example:

    .. code-block:: bash

        salt '*' bluecoat_sslv.get_domain_list MyDomainNameList

    '''
    payload = {"jsonrpc": "2.0",
               "id": "ID0",
               "method": "get_policy_domain_names",
               "params": [list_name, 0, 256]}

    response = __proxy__['bluecoat_sslv.call'](payload, False)

    return _convert_to_list(response, 'item_name')