package balance import ( "context" "math/big" "github.com/ethereum/go-ethereum/common" "github.com/lmittmann/w3" "github.com/lmittmann/w3/module/eth" ) func (c *BatchBalance) TokensBalance(ctx context.Context, owner common.Address, tokens []common.Address) ([]*big.Int, error) { var balancesResults []*big.Int err := c.ethClient.CallCtx( ctx, eth.CallFunc(w3.MustNewFunc("tokensBalance(address owner, address[] contracts)", "uint256[]"), c.batchContract, owner, tokens).Returns(&balancesResults), ) if err != nil { return nil, err } return balancesResults, nil }