import type { BigNumber } from "@ethersproject/bignumber";
import type { Provider } from "@metamask/network-controller";
import type { Hex } from "@metamask/utils";
export declare const fetchTokenBalance: (address: string, userAddress: string, provider: Provider) => Promise<BigNumber | undefined>;
export declare const calcLatestSrcBalance: (provider: Provider, selectedAddress: string, tokenAddress: string, chainId: Hex) => Promise<BigNumber | undefined>;
export declare const hasSufficientBalance: (provider: Provider, selectedAddress: string, tokenAddress: string, fromTokenAmount: string, chainId: Hex) => Promise<boolean>;
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