/**
 * AgentGuard(TM) Spend: Per-model cost table.
 *
 * Costs are USD cents per 1,000 tokens. Customers can override this table
 * locally via setCostOverride() or ~/.agentguard/cost-overrides.json.
 *
 * Patent notice: Protected by U.S. patent-pending technology
 * (App. Nos. 63/983,615; 63/983,621; 63/983,843; 63/984,626;
 * 64/071,781; 64/071,789).
 */
import type { Provider } from './types';
export interface ModelCost {
    /** Cents per 1,000 input tokens. */
    inputCentsPerKtok: number;
    /** Cents per 1,000 output tokens. */
    outputCentsPerKtok: number;
}
export declare const DEFAULT_COST_OVERRIDES_PATH: string;
export declare function setCostOverride(model: string, cost: ModelCost): void;
export declare function clearCostOverrides(): void;
export declare function listCostOverrides(): Record<string, ModelCost>;
export declare function persistCostOverrides(filePath?: string): void;
export declare function loadPersistedCostOverrides(filePath?: string): number;
export declare function getModelCost(model: string): ModelCost | null;
export declare function computeCallCents(model: string, inputTokens: number, outputTokens: number): number | null;
export declare function inferProvider(model: string): Provider;
export declare function knownModelCosts(): Record<string, ModelCost>;
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