code: def regions():
      
      return [RDSRegionInfo(name='us-east-1',
                            endpoint='rds.us-east-1.amazonaws.com'),
              RDSRegionInfo(name='eu-west-1',
                            endpoint='rds.eu-west-1.amazonaws.com'),
              RDSRegionInfo(name='us-west-1',
                            endpoint='rds.us-west-1.amazonaws.com'),
              RDSRegionInfo(name='us-west-2',
                            endpoint='rds.us-west-2.amazonaws.com'),
              RDSRegionInfo(name='sa-east-1',
                            endpoint='rds.sa-east-1.amazonaws.com'),
              RDSRegionInfo(name='ap-northeast-1',
                            endpoint='rds.ap-northeast-1.amazonaws.com'),
              RDSRegionInfo(name='ap-southeast-1',
                            endpoint='rds.ap-southeast-1.amazonaws.com')
              ]
docs: Get all available regions for the RDS service.
  
      :rtype: list
      :return: A list of :class:`boto.rds.regioninfo.RDSRegionInfo`