import type { ToolSet } from 'ai';
import type { ToolOutputStore } from './tool-output-store.ts';
export declare const DEFAULT_STEP_OUTPUT_BUDGET_CHARS = 120000;
export type StepOutputBudgetInit = {
    store: ToolOutputStore;
    budgetChars?: number;
};
export type StepBudgetedTools<T extends ToolSet> = {
    tools: T;
    stepFinished: () => void;
};
export declare function withStepOutputBudget<T extends ToolSet>(tools: T, init: StepOutputBudgetInit): StepBudgetedTools<T>;