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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_trunk_interfaces(auth, url, devid=None, devip=None):
 """Function takes devId as input to RESTFULL call to HP IMC platform :param auth: requests auth object #usually auth.creds from auth pyhpeimc.auth.class :param url: base url of IMC RS interface #usually auth.url from pyhpeimc.auth.authclass :param devid: str requires devid of the target device :param devip: str of ipv4 address of the target device :return: list of dictionaries where each element of the list represents an interface which has been configured as a VLAN trunk port :rtype: list ['No trunk inteface'] """

    if devip is not None:
        devid = get_dev_details(devip, auth, url)['id']
    get_trunk_interfaces_url = "/imcrs/vlan/trunk?devId=" + str(devid) + \
                               "&start=1&size=5000&total=false"
    f_url = url + get_trunk_interfaces_url
    response = requests.get(f_url, auth=auth, headers=HEADERS)
    try:
        if response.status_code == 200:
            dev_trunk_interfaces = (json.loads(response.text))
            if len(dev_trunk_interfaces) == 2:
                if isinstance(dev_trunk_interfaces['trunkIf'], list):
                    return dev_trunk_interfaces['trunkIf']
                elif isinstance(dev_trunk_interfaces['trunkIf'], dict):
                    return [dev_trunk_interfaces['trunkIf']]
            else:
                dev_trunk_interfaces['trunkIf'] = ["No trunk inteface"]
                return dev_trunk_interfaces['trunkIf']
    except requests.exceptions.RequestException as error:
        return "Error:\n" + str(error) + ' get_trunk_interfaces: An Error has occured'