Schema representing a CreateImageVariationRequest within the OpenAI API
@type t() :: %ExOpenAI.Components.CreateImageVariationRequest{ image: bitstring() | {String.t(), bitstring()}, model: (:"dall-e-2" | String.t()) | nil, n: integer() | nil, response_format: (:b64_json | :url) | nil, size: (:"1024x1024" | :"512x512" | :"256x256") | nil, user: String.t() | nil }