transparent requires an output_format that supports alpha (png or webp).
ImageGenerationRequestBackground
Background treatment.
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transparent requires an output_format that supports alpha (png or webp).
import { ImageGenerationRequestBackground } from "@openrouter/sdk/models";
let value: ImageGenerationRequestBackground = "auto";
// Open enum: unrecognized values are captured as Unrecognized<string>
"auto" | "transparent" | "opaque" | Unrecognized<string>