def METHOD_NAME(self, operation_name, kwarg):
    if operation_name == "ListDomainNames":
        return {
            "DomainNames": [
                {
                    "DomainName": test_domain_name,
                },
            ]
        }
    if operation_name == "DescribeDomainConfig":
        return {
            "DomainConfig": {
                "AccessPolicies": {
                    "Options": policy_json,
                },
                "LogPublishingOptions": {
                    "Options": {
                        "SEARCH_SLOW_LOGS": {"Enabled": True},
                        "INDEX_SLOW_LOGS": {"Enabled": True},
                        "AUDIT_LOGS": {"Enabled": True},
                    },
                },
            }
        }
    if operation_name == "DescribeDomain":
        return {
            "DomainStatus": {
                "ARN": domain_arn,
                "Endpoints": {
                    "vpc": "vpc-endpoint-h2dsd34efgyghrtguk5gt6j2foh4.us-east-1.es.amazonaws.com"
                },
                "EngineVersion": "opensearch-version1",
                "VPCOptions": {
                    "VPCId": "test-vpc-id",
                },
                "CognitoOptions": {"Enabled": True},
                "EncryptionAtRestOptions": {"Enabled": True},
                "NodeToNodeEncryptionOptions": {"Enabled": True},
                "AdvancedOptions": {"string": "string"},
                "LogPublishingOptions": {
                    "string": {
                        "CloudWatchLogsLogGroupArn": "string",
                        "Enabled": True | False,
                    }
                },
                "ServiceSoftwareOptions": {"UpdateAvailable": True},
                "DomainEndpointOptions": {"EnforceHTTPS": True},
                "AdvancedSecurityOptions": {"InternalUserDatabaseEnabled": True},
            }
        }
    if operation_name == "ListTags":
        return {
            "TagList": [
                {"Key": "test", "Value": "test"},
            ]
        }
    return make_api_call(self, operation_name, kwarg)