export declare const CODEX_RESPONSES_URL = "https://chatgpt.com/backend-api/codex/responses";
export type CodexReasoningEffort = 'none' | 'low' | 'medium' | 'high' | 'xhigh';
export type CodexContentPart = {
    type: 'text' | 'input_text';
    text?: string;
} | {
    type: string;
    [key: string]: unknown;
};
export interface CodexInstructionsInputMessage {
    readonly role?: string;
    readonly content?: unknown;
}
export interface CodexResponsesRequestInput {
    readonly model: string;
    readonly stream?: boolean;
    readonly input?: unknown;
    readonly instructions?: string;
    readonly reasoning?: {
        readonly effort?: CodexReasoningEffort | string;
        readonly [key: string]: unknown;
    };
    readonly max_output_tokens?: number;
    readonly store?: boolean;
    readonly [key: string]: unknown;
}
export interface CodexPreparedResponsesRequest {
    readonly url: typeof CODEX_RESPONSES_URL;
    readonly body: CodexResponsesRequestInput;
}
export declare const stringifyCodexContent: (value: unknown) => string;
export declare const codexInstructionsText: (content: unknown) => string;
export declare const collectCodexInstructions: (messages: readonly CodexInstructionsInputMessage[], fallback?: string) => string;
export declare const stripCodexInputIds: (body: string) => string;
export declare const prepareCodexResponsesRequest: (request: CodexResponsesRequestInput) => CodexPreparedResponsesRequest;
export interface CodexUsageDoneEvent {
    readonly type: 'done';
    readonly data: {
        readonly usage?: unknown;
    };
}
export declare const codexDoneEventFromResponseCompleted: (event: unknown) => CodexUsageDoneEvent;
//# sourceMappingURL=codex.d.ts.map