Generates a variation of a given image.
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
The image to vary.
The model to use for image generation.
The number of variations to generate. Must be between 1 and 10.
The format in which the generated images are returned. Must be one of url or b64_json.
The size of the generated images.
A unique identifier representing your end-user.