The Go Celo blockchain package officially implements the Celo blockchain in Go to interact with the blockchain. In this second episode, now that we have created a client to connect to the Celo blockchain, you will learn how to query CELO, cUSD, and other ERC20 token account balances on the Celo blockchain for the the latest balance or at a specific block height. You will also learn how to use the math/big library when dealing with balances. By the end of this tutorial, you will have learned how to use the common package.