code: def list(self, request, *args, **kwargs):
          
          return super(BaseServiceProjectLinkViewSet, self).list(request, *args, **kwargs)
docs: To get a list of connections between a project and an service, run **GET** against service_project_link_url
          as authenticated user. Note that a user can only see connections of a project where a user has a role.
  
          If service has `available_for_all` flag, project-service connections are created automatically.
          Otherwise, in order to be able to provision resources, service must first be linked to a project.
          To do that, **POST** a connection between project and a service to service_project_link_url
          as stuff user or customer owner.