Angular project not recognizing ApiModule

Description

I am upgrading my project front end from Angular 6 to 11. With that I have upgraded from swagger cli 2.3.1 to 2.4.18. Swagger generates the service-client layer without issues and when I run npm install on my Angular project it installs without issues however when I serve the project and try to open it in the browser I'm getting an error that says ApiModule is undefined. I've searched for a solution but haven't had any luck.

Swagger-codegen version

2.4.18

Swagger declaration file content or url

Angular Code:
import { Configuration, ConfigurationParameters, ApiModule, BASE_PATH } from '@angular-p/logic-service-client';
import { PresentationService } from './main/onboarding/_services/presentation.service';
import { PresentationSharedService } from './services/presentation-shared.service';

export function apiConfigFactory (): Configuration {
const params: ConfigurationParameters = {
// set configuration parameters here.
};
return new Configuration(params);
}
@NgModule({

imports: [
ApiModule.forRoot(apiConfigFactory),

Service-Client AppModule Code:

export class ApiModule {
public static forRoot(configurationFactory: () => Configuration): ModuleWithProviders {
return {
ngModule: ApiModule,
providers: [ { provide: Configuration, useFactory: configurationFactory } ]
};
}

Command line used for generation

java -jar ${WORKSPACE}/build/swagger-codegen-cli-2.4.17.jar generate
-i ${WORKSPACE}/build/logic-service.json
-o ${WORKSPACE}/build
-l typescript-angular
--additional-properties npmName=@angular-p/logic-service-client,snapshot=true,ngVersion=11.1.0

Steps to reproduce

happens whenever I try to open the project in a browser.

Cannot read property 'forRoot' of undefined shows up in the console.

Related issues/PRs

none that I'm aware of

Suggest a fix/enhancement

just asking for help

Start with the generated Angular service-client AppModule code and the importing Angular module shown in the report. Reproduce the browser error after generating with swagger-codegen 2.4.18 and inspect why ApiModule is undefined when ApiModule.forRoot is called. Done means the generated client can be imported and the Angular project opens without this error.