import boto3
autoscaling_client = boto3.client('application-autoscaling')
#Read capacity
autoscaling_client.register_scalable_target(ServiceNamespace="dynamodb",
                                            ResourceId="table/fake_table",
                                            ScalableDimension='dynamodb:table:ReadCapacityUnits',
                                            MinCapacity=5,
                                            MaxCapacity=100)
#Write capacity
autoscaling_client.register_scalable_target(ServiceNamespace="dynamodb",
                                            ResourceId="table/table_name",
                                            ScalableDimension='dynamodb:table:WriteCapacityUnits',
                                            MinCapacity=5,
                                            MaxCapacity=100)