'Get the service model object.
:type service_name: string
:param service_name: The service name
:type api_version: string
:param api_version: The API version of the service.  If none is
provided, then the latest API version will be used.
:rtype: L{botocore.model.ServiceModel}
:return: The botocore service model for the service.'

def get_service_model(self, service_name, api_version=None):

    service_description = self.get_service_data(service_name, api_version)
    return ServiceModel(service_description, service_name=service_name)
