[boto3 docs](https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ec2/client/request_spot_fleet.html) warns: > We strongly discourage using the RequestSpotFleet API because it is a legacy API with no planned investment. The [Amazon EC2 User Guide](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-best-practices.html#which-spot-request-method-to-use) suggests some alternatives.