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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 set_operator_password(operator, password, auth, url):
 """ Function to set the password of an existing operator :param operator: str Name of the operator account :param password: str New password :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 :return: int of 204 if successfull, :rtype: int "password" : "password","operatorGroupId" : "1", "name" : "testadmin","desc" : "test admin account", "defaultAcl" : "","authType" : "0"} """

    if operator is None:
        operator = input(
            '''\n What is the username you wish to change the password?''')
    oper_id = ''
    authtype = None
    plat_oper_list = get_plat_operator(auth, url)
    for i in plat_oper_list:
        if i['name'] == operator:
            oper_id = i['id']
            authtype = i['authType']
    if oper_id == '':
        return "User does not exist"
    change_pw_url = "/imcrs/plat/operator/"
    f_url = url + change_pw_url + oper_id
    if password is None:
        password = input(
            '''\n ============ Please input the operators new password:\n ============  ''')
    payload = json.dumps({'password': password, 'authType': authtype})
    response = requests.put(f_url, data=payload, auth=auth, headers=HEADERS)
    try:
        if response.status_code == 204:
            # print("Operator:" + operator +
            # " password was successfully changed")
            return response.status_code
    except requests.exceptions.RequestException as error:
        return "Error:\n" + str(error) + ' set_operator_password: An Error has occured'