export declare class BudgetExceededError extends Error {
    constructor(steps: number, maxSteps: number);
}
export declare class ThinkingBudget {
    private maxSteps;
    private maxTokens?;
    constructor(maxSteps?: number, maxTokens?: number | undefined);
    check(step: number): void;
    isExhausted(step: number): boolean;
}
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