import type { AssistantMessage, Context } from "@mariozechner/pi-ai";
type TokenDelta = {
    size: {
        input: number;
        output: number;
        cacheRead: number;
        cacheWrite: number;
        total: number;
    };
    source: "usage" | "estimate";
};
/**
 * Resolves token usage from inference output, falling back to estimates when missing.
 * Expects: context is the request context prior to appending the assistant message.
 */
export declare function tokensResolve(context: Context, message: AssistantMessage): TokenDelta;
export {};
//# sourceMappingURL=tokensResolve.d.ts.map