The width of the generated images, must be a 8 multiple (within [64, 2048], default: 512)
If model.type is sd-xl, sd-xl-lora, sd-xl-composition the width must be within [512, 2048]
If model.type is sd-1_5, the width must be within [64, 1024]
If model.type is flux.1.1-pro-ultra, you can use the aspectRatio parameter instead