import type { ImageGenerationOpts, ModelUsage } from '../types/types.js';
export type OpenAIImageQuality = 'low' | 'medium' | 'high' | 'auto';
export type OpenAIImageSize = 'auto' | `${number}x${number}`;
export interface OpenAIImageUsage {
    input_tokens?: number;
    input_tokens_details?: {
        text_tokens?: number;
        image_tokens?: number;
    };
    output_tokens?: number;
    total_tokens?: number;
}
export declare function normalizeOpenAIImageQuality(quality?: ImageGenerationOpts['quality']): OpenAIImageQuality;
export declare function normalizeOpenAIImageSize(model: string, size?: ImageGenerationOpts['size']): OpenAIImageSize;
export declare function getOpenAIImageCostEstimate(model: string, quality: OpenAIImageQuality, size: OpenAIImageSize): number;
export declare function getOpenAIImageCostMetadata(model: string, quality: OpenAIImageQuality, size: OpenAIImageSize): Record<string, unknown>;
export declare function calculateOpenAIImageUsageCost(model: string, usage: OpenAIImageUsage): number | undefined;
export declare function buildOpenAIImageUsageRecord(model: string, usage: OpenAIImageUsage, imageCount: number, requestId: string | undefined, metadata: Record<string, unknown>): ModelUsage | undefined;
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