import type { CaipChainId, Hex } from "@metamask/utils";
import type { BridgeAsset, BridgeControllerState, GenericQuoteRequest, QuoteResponseV1 } from "../types.cjs";
/**
 * Checks whether the transaction is a cross-chain transaction by comparing the source and destination chainIds
 *
 * @param srcChainId - The source chainId
 * @param destChainId - The destination chainId
 * @returns Whether the transaction is a cross-chain transaction
 */
export declare const isCrossChain: (srcChainId: GenericQuoteRequest['srcChainId'], destChainId?: GenericQuoteRequest['destChainId']) => boolean;
export declare const getDefaultBridgeControllerState: () => BridgeControllerState;
/**
 * Returns the native swaps or bridge asset for a given chainId
 *
 * @param chainId - The chainId to get the default token for
 * @returns The native asset for the given chainId
 * @throws If no native asset is defined for the given chainId
 */
export declare const getNativeAssetForChainId: (chainId: string | number | Hex | CaipChainId) => BridgeAsset;
/**
 * A function to return the txParam data for setting allowance to 0 for USDT on Ethereum
 *
 * @param destChainId - The destination chain ID
 * @returns The txParam data that will reset allowance to 0, combine it with the approval tx params received from Bridge API
 */
export declare const getEthUsdtResetData: (destChainId: GenericQuoteRequest['destChainId']) => `0x${string}`;
export declare const isEthUsdt: (chainId: GenericQuoteRequest['srcChainId'], address: string) => boolean;
export declare const sumHexes: (...hexStrings: string[]) => Hex;
/**
 * Checks whether the provided address is strictly equal to the address for
 * the default swaps token of the provided chain.
 *
 * @param address - The string to compare to the default token address
 * @param chainId - The hex encoded chain ID of the default swaps token to check
 * @returns Whether the address is the provided chain's default token address
 */
export declare const isSwapsDefaultTokenAddress: (address: string, chainId: Hex | CaipChainId) => boolean;
/**
 * Checks whether the provided symbol is strictly equal to the symbol for
 * the default swaps token of the provided chain.
 *
 * @param symbol - The string to compare to the default token symbol
 * @param chainId - The hex encoded chain ID of the default swaps token to check
 * @returns Whether the symbol is the provided chain's default token symbol
 */
export declare const isSwapsDefaultTokenSymbol: (symbol: string, chainId: Hex | CaipChainId) => boolean;
/**
 * Checks whether the address is a native asset in any supported xchain swaps network
 *
 * @param address - The address to check
 * @returns Whether the address is a native asset
 */
export declare const isNativeAddress: (address?: string | null) => boolean;
/**
 * Checks whether the chainId matches Solana in CaipChainId or number format
 *
 * @param chainId - The chainId to check
 * @returns Whether the chainId is Solana
 */
export declare const isSolanaChainId: (chainId: Hex | number | CaipChainId | string) => boolean;
export declare const isBitcoinChainId: (chainId: Hex | number | CaipChainId | string) => boolean;
export declare const isTronChainId: (chainId: Hex | number | CaipChainId | string) => boolean;
/**
 * Checks if a chain ID represents a non-EVM blockchain supported by swaps
 * Currently supports Solana, Bitcoin and Tron
 *
 * @param chainId - The chain ID to check
 * @returns True if the chain is a supported non-EVM chain, false otherwise
 */
export declare const isNonEvmChainId: (chainId: GenericQuoteRequest['srcChainId']) => boolean;
export declare const isEvmQuoteResponse: (quoteResponse: QuoteResponseV1) => quoteResponse is QuoteResponseV1<{
    chainId: number;
    from: `0x${string}`;
    to: `0x${string}`;
    value: `0x${string}`;
    data: `0x${string}`;
    gasLimit: number | null;
    effectiveGas?: number | undefined;
}, {
    chainId: number;
    from: `0x${string}`;
    to: `0x${string}`;
    value: `0x${string}`;
    data: `0x${string}`;
    gasLimit: number | null;
    effectiveGas?: number | undefined;
}>;
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