/**
 * Slippage calculation helpers for Router calls.
 *
 * Two paths:
 *   - Bonding curve: uses Helper3.tryBuy to estimate output
 *   - PancakeSwap (graduated): uses PancakeRouter.getAmountsOut
 *
 * Without proper minimums, passing 0n makes every tx fully sandwichable.
 */
import type { Address, PublicClient } from 'viem';
/**
 * Compute slippage-protected minimums for volume (buy+sell round-trip).
 *
 * Tries bonding-curve estimation first (tryBuy). If that fails (token has
 * graduated), falls back to PancakeSwap getAmountsOut. If both fail,
 * returns 0n (no protection — last resort).
 */
export declare function computeVolumeSlippage(client: PublicClient, token: Address, bnbWei: bigint, slippageBps: number): Promise<{
    minTokenOut: bigint;
    minBnbBack: bigint;
}>;
/**
 * Compute minTokenOut for a turnover (buy-only, no sell leg).
 * Same dual-path logic as computeVolumeSlippage but only the buy side.
 */
export declare function computeTurnoverSlippage(client: PublicClient, token: Address, bnbWei: bigint, slippageBps: number): Promise<{
    minTokenOut: bigint;
}>;
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