Duplicate name noticed

[NewEgoDoc]

Describe the bug
using npm run start:dev in nestjs, error comes out. but the problem is that UserDoc is only one in the whole project

/node_modules/tspec/dist/chunks/index.cjs:603
        throw new Error(`Duplicate name: ${name}`);
              ^

Error: Duplicate name: UserDoc

To Reproduce
Steps to reproduce the behavior:

1. define main.ts

async function bootstrap() {
    initializeTransactionalContext({ storageDriver: StorageDriver.AUTO });

    const app = await NestFactory.create(AppModule, {
        abortOnError: true,
        logger: new CustomLogger(),
    });
    app.setGlobalPrefix('/api/v1');
    app.useGlobalInterceptors(
        new ClassSerializerInterceptor(app.get(Reflector)),
    );

    app.useGlobalPipes(new ValidationPipe({ transform: true }));

    app.use('/docs', await TspecDocsMiddleware(TspecConfig));
    await app.listen(3000);
}

2. then make the file user-doc.ts

export type UserDoc = Tspec.DefineApiSpec<{
    tags: ['user'];
    basePath: '/api/v1/user';
    paths: {
        '/': {
            get: {
                summary: 'yeahyeah';
                responses: {
                    200: {
                        status: 2000;
                    };
                };
            };
        };
    };
}>;

3. then enter the terminal npm run start:dev
4. error comes out even if the variable UserDoc is only one in whole project

/Users/jh/Documents/intellij/nestjs/nillily-manbo/node_modules/tspec/dist/chunks/index.cjs:603
        throw new Error(`Duplicate name: ${name}`);
              ^

Error: Duplicate name: UserDoc
    at /Users/jh/Documents/intellij/nestjs/nillily-manbo/node_modules/tspec/dist/chunks/index.cjs:603:15
    at visitNodes (/Users/jh/Documents/intellij/nestjs/nillily-manbo/node_modules/typescript-json-schema/node_modules/typescript/lib/typescript.js:27716:24)
    at forEachChildInSourceFile (/Users/jh/Documents/intellij/nestjs/nillily-manbo/node_modules/typescript-json-schema/node_modules/typescript/lib/typescript.js:28338:18)
    at forEachChild (/Users/jh/Documents/intellij/nestjs/nillily-manbo/node_modules/typescript-json-schema/node_modules/typescript/lib/typescript.js:27801:37)
    at SourceFileObject.forEachChild (/Users/jh/Documents/intellij/nestjs/nillily-manbo/node_modules/typescript-json-schema/node_modules/typescript/lib/typescript.js:141047:18)
    at /Users/jh/Documents/intellij/nestjs/nillily-manbo/node_modules/tspec/dist/chunks/index.cjs:585:13
    at Array.forEach (<anonymous>)
    at getTspecSignatures (/Users/jh/Documents/intellij/nestjs/nillily-manbo/node_modules/tspec/dist/chunks/index.cjs:584:15)
    at getOpenapiSchemas (/Users/jh/Documents/intellij/nestjs/nillily-manbo/node_modules/tspec/dist/chunks/index.cjs:687:24)
    at generateTspec (/Users/jh/Documents/intellij/nestjs/nillily-manbo/node_modules/tspec/dist/chunks/index.cjs:767:13)

Node.js v20.12.0

Expected behavior
I want to solve this problem. actually the solution is to guide to set this code in this environment. and fix the code
I made this section annotated

if (names.includes(name)) {
      throw new Error(`Duplicate name: ${name}`);
    }

then it worked

Screenshots
this is error log

it is exactly same with no.4 error logs in To Reproduce

Desktop (please complete the following information):

• OS: Macos
• node 20.12.0
• nest: 10.0.0
• typescript: 5.1.3