[typescript-angular] Missing curly brace in the generated service

[mtormento]

Description

The generated classes for services are invalid, because a curly brace is missing at the end.

I found this issue on swagger-codegen project:
swagger-api/swagger-codegen#8857
but I think it belongs here.

[MBcom]

a working codegen for typescript angular can be found here https://github.com/MBcom/swagger-codegen/ (already includes the fixed generator package) (fixes #170, #224) just run mvn clean package to get the working cli