code: def get_db_instances(self):
          '''  DB instance '''
          if not self.connect_to_aws_rds():
              return False
          try:
              instances = self.rdsc.describe_db_instances().get('DBInstances')
          except:
              return False
          else:
              return instancef get_db_instances(self):
          '''  DB instance '''
          if not self.connect_to_aws_rds():
              return False
          try:
              instances = self.rdsc.describe_db_instances().get('DBInstances')
          except:
              return False
          else:
              return instances
docs: DB instance