def module_name(version, service)
      return [api_name, version.to_s.upcase, service.to_s].join('::')
    end
def module_name(version, service)
      return [api_name, version.to_s.upcase, service.to_s].join('::')
    end
Returns the full module name for a given service.

 Args:
 - version: the API version
 - service: the service name

 Returns:
 The full module name for the given service