// npm install @ankr.com/ankr.jsimport { AnkrProvider } from '@ankr.com/ankr.js';// Setup provider AnkrProviderconst provider = new AnkrProvider()// Get token balances of address with USD prices among multiple chainsconst balances = async () => {return await provider.getAccountBalance({blockchain: ['bsc', 'eth', 'polygon', 'avalanche'],walletAddress: '0xfa9019df60d3c710d7d583b2d69e18d412257617',});};