codex-rs/code-mode-protocol/src/response.rs

use serde::Deserialize;
use serde::Serialize;

#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "lowercase")]
pub enum ImageDetail {
    Auto,
    Low,
    High,
    Original,
}

pub const DEFAULT_IMAGE_DETAIL: ImageDetail = ImageDetail::High;

#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum FunctionCallOutputContentItem {
    InputText {
        text: String,
    },
    InputImage {
        image_url: String,
        #[serde(default, skip_serializing_if = "Option::is_none")]
        detail: Option<ImageDetail>,
    },
    InputAudio {
        audio_url: String,
    },
}