import { FungibleImplementation, TokenBalance, UserToken } from "./types";
export declare function buildQueryString(params: Record<string, any>): string;
export declare function polygonNativeAssetImplementation(): FungibleImplementation[];
export declare function scientificToDecimal(num: number): string;
export declare function zerionToTokenBalance(userToken: UserToken): TokenBalance;
export declare function zerionToTokenBalances(userTokens: UserToken[]): TokenBalance[];
export declare const NATIVE_ASSET: `0x${string}`;
export declare function isNativeAsset(token: string): boolean;