import type { Chain, GetChainContractAddressErrorType, ReadContractErrorType } from 'viem';
import { type RequireClientContracts } from '../../../clients/chain.js';
export type ApplyDiscountParameters = {
    /** Undiscounted value (e.g. baseRate × duration), in standard units */
    value: bigint;
    /** Term length in seconds — selects the discount tier */
    duration: bigint;
};
export type ApplyDiscountReturnType = bigint;
export type ApplyDiscountErrorType = ReadContractErrorType | GetChainContractAddressErrorType;
/**
 * Applies the oracle's duration-tiered discount to an arbitrary value. The
 * oracle uses a step-function keyed on duration; doing this on-chain keeps the
 * caller agnostic to the contract's discount denominator.
 *
 * @param client - {@link Client}
 * @param parameters - {@link ApplyDiscountParameters}
 * @returns The discounted value. {@link ApplyDiscountReturnType}
 */
export declare function applyDiscount<chain extends Chain>(client: RequireClientContracts<chain, 'ensStandardRentPriceOracle'>, { value, duration }: ApplyDiscountParameters): Promise<ApplyDiscountReturnType>;
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