Adding Swagger decorators to NestJS module for reuse - node.js

Question

I'd like to create a shared library for reuse in a related Express NestJS app. In order to do so and gain type introspection + examples on nested objects in the input/output, I am struggling to maintain information from the imported package that works just fine.
Here's a sample of my efforts that work locally when I pass in this class directly on the controller. However, when running this from a file that has only this exported, I lose the examples + introspection. I believe there is either an error in my typescript build that is causing metadata/decorators to be cut out, or there is a problem in my nest build in the api file, that causes the types to be lost.
My typed response classes (abbreviated) are here (identical when in the file or imported):
export class ExtendedRelatedSubClass extends RelatedSubClass {
private static exampleSubClass: RelatedSubClass = getRelatedSubClassMock()
#ApiProperty({ example: ExtendedRelatedSubClass.exampleSubClass.randomProp })
public randomProp: string
}
export class ExtendedUserResponse extends UserResponse {
private static exampleUser: UserResponse = getUserMock()
#ApiProperty({ example: ExtendedAccountHolderResponse.exampleAccountHolder.address })
public address: ExtendedAddressResponse = new ExtendedAddressResponse()
#ApiProperty({ example: ExtendedAccountHolderResponse.exampleAccountHolder.legalInformation })
public relatedSubClass: ExtendedRelatedSubClass = new ExtendedRelatedSubClass()
}
The class is then used on a controller like so:
export const userFilteredProps = [
'randomSubClass',
] as const
export class FilteredUserResponse extends PickType(
ExtendedUserResponse,
userFilteredProps
) {}
#Controller('/:market/users')
export class UsersController {
constructor(protected readonly userService: UserService) {}
#Get('/')
#HttpCode(200)
public async getUser(
#Param() params: MarketParam,
): Promise<FilteredUserResponse> {
}
My attempt at creating an external module does not maintain this integrity of the examples/decorators and has this tsconfig (I completely lose typing and examples when it is imported into the old file):
{
"compilerOptions": {
"module": "commonjs",
"declaration": true,
"removeComments": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"allowSyntheticDefaultImports": true,
"target": "es2017",
"sourceMap": true,
"outDir": "./dist",
"baseUrl": "./",
"incremental": true,
"skipLibCheck": true
},
"include": ["src/**/*"]
}
My nest-cli file for swagger:
{
"collection": "#nestjs/schematics",
"sourceRoot": "src",
"entryFile": "create-swagger-app",
"compilerOptions": {
"plugins": [{
"name": "#nestjs/swagger",
"options": {
"controllerFileNameSuffix": ".controller.ts",
"classValidatorShim": true,
"dtoFileNameSuffix": [".response.ts", ".request.ts"]
}
}]
}
}
Are there any issues with how the file is being exported from the package? I have tried both nest build and yarn build with no success.
Could there be more parameters in my nest cli swagger build that are needed as well?