import { ethers } from 'ethers';
import { Chain, ChainFeeData } from './Chain';
/**
 * Polygon mainnet (chainId 137).
 *
 * Why this class exists: Polygon enforces a hard 25 gwei minimum priority fee
 * at the RPC level. Transactions submitted with a lower priority fee are
 * rejected with "max fee per gas less than block base fee" or simply silently
 * dropped. ethers v5's getFeeData() does NOT know about this floor and will
 * happily return ~1.5 gwei from eth_feeHistory.
 *
 * The fix: clamp maxPriorityFeePerGas to at least 25 gwei (overridable via
 * policy.minPriorityFeeGwei in root config) and ensure maxFeePerGas >=
 * 2 * maxPriorityFeePerGas.
 */
export declare class PolygonChain extends Chain {
    static chainId: number;
    static defaults: {
        name: string;
        aliases: string[];
        rpc: string;
        nativeCurrencyName: string;
        nativeCurrencySymbol: string;
        nativeCurrencyDecimals: number;
    };
    protected minPriorityFee(): ethers.BigNumber;
    getFeeData(): Promise<ChainFeeData>;
}
/**
 * Polygon Amoy testnet (chainId 80002).
 *
 * Same fee floor concerns as Polygon mainnet — Amoy is the canonical Polygon
 * PoS testnet and the RPC enforces an identical 25 gwei priority floor.
 * Subclassing PolygonChain keeps the policy in one place.
 */
export declare class AmoyChain extends PolygonChain {
    static chainId: number;
    static defaults: {
        name: string;
        aliases: string[];
        rpc: string;
        nativeCurrencyName: string;
        nativeCurrencySymbol: string;
        nativeCurrencyDecimals: number;
    };
}
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