func (_IERC721 *IERC721Session) BalanceOf(owner common.Address) (*big.Int, error) {
	return _IERC721.Contract.BalanceOf(&_IERC721.CallOpts, owner)
}
BalanceOf is a free data retrieval call binding the contract method 0x70a08231.

Solidity: function balanceOf(owner address) constant returns(balance uint256)
package api
import (
	"math/big"
	"strings"
	ethereum "github.com/ethereum/go-ethereum"
	"github.com/ethereum/go-ethereum/accounts/abi"
	"github.com/ethereum/go-ethereum/accounts/abi/bind"
	"github.com/ethereum/go-ethereum/common"
	"github.com/ethereum/go-ethereum/core/types"
	"github.com/ethereum/go-ethereum/event"
)
var (
	_ = big.NewInt
	_ = strings.NewReader
	_ = ethereum.NotFound
	_ = abi.U256
	_ = bind.Bind
	_ = common.Big1
	_ = types.BloomLookup
	_ = event.NewSubscription
)
const IERC721ABI = "[{\"constant\":true,\"inputs\":[{\"name\":\"interfaceId\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"to\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"approved\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"ApprovalForAll\",\"type\":\"event\"},{\"constant\":true,\"inputs\":[{\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"name\":\"balance\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"ownerOf\",\"outputs\":[{\"name\":\"owner\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"to\",\"type\":\"address\"},{\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"getApproved\",\"outputs\":[{\"name\":\"operator\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"operator\",\"type\":\"address\"},{\"name\":\"_approved\",\"type\":\"bool\"}],\"name\":\"setApprovalForAll\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"owner\",\"type\":\"address\"},{\"name\":\"operator\",\"type\":\"address\"}],\"name\":\"isApprovedForAll\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"from\",\"type\":\"address\"},{\"name\":\"to\",\"type\":\"address\"},{\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"from\",\"type\":\"address\"},{\"name\":\"to\",\"type\":\"address\"},{\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"from\",\"type\":\"address\"},{\"name\":\"to\",\"type\":\"address\"},{\"name\":\"tokenId\",\"type\":\"uint256\"},{\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]"
const IERC721Bin = `0x`
func DeployIERC721(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *IERC721, error) {
	parsed, err := abi.JSON(strings.NewReader(IERC721ABI))
	if err != nil {
		return common.Address{}, nil, nil, err
	}
	address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(IERC721Bin), backend)
	if err != nil {
		return common.Address{}, nil, nil, err
	}
	return address, tx, &IERC721{IERC721Caller: IERC721Caller{contract: contract}, IERC721Transactor: IERC721Transactor{contract: contract}, IERC721Filterer: IERC721Filterer{contract: contract}}, nil
}
type IERC721 struct {
	IERC721Caller      
	IERC721Transactor  
	IERC721Filterer    
}
type IERC721Caller struct {
	contract *bind.BoundContract  
}
type IERC721Transactor struct {
	contract *bind.BoundContract  
}
type IERC721Filterer struct {
	contract *bind.BoundContract  
}
type IERC721Session struct {
	Contract     *IERC721           
	CallOpts     bind.CallOpts      
	TransactOpts bind.TransactOpts  
}
type IERC721CallerSession struct {
	Contract *IERC721Caller  
	CallOpts bind.CallOpts   
}
type IERC721TransactorSession struct {
	Contract     *IERC721Transactor  
	TransactOpts bind.TransactOpts   
}
type IERC721Raw struct {
	Contract *IERC721  
}
type IERC721CallerRaw struct {
	Contract *IERC721Caller  
}
type IERC721TransactorRaw struct {
	Contract *IERC721Transactor  
}
func NewIERC721(address common.Address, backend bind.ContractBackend) (*IERC721, error) {
	contract, err := bindIERC721(address, backend, backend, backend)
	if err != nil {
		return nil, err
	}
	return &IERC721{IERC721Caller: IERC721Caller{contract: contract}, IERC721Transactor: IERC721Transactor{contract: contract}, IERC721Filterer: IERC721Filterer{contract: contract}}, nil
}
func NewIERC721Caller(address common.Address, caller bind.ContractCaller) (*IERC721Caller, error) {
	contract, err := bindIERC721(address, caller, nil, nil)
	if err != nil {
		return nil, err
	}
	return &IERC721Caller{contract: contract}, nil
}
func NewIERC721Transactor(address common.Address, transactor bind.ContractTransactor) (*IERC721Transactor, error) {
	contract, err := bindIERC721(address, nil, transactor, nil)
	if err != nil {
		return nil, err
	}
	return &IERC721Transactor{contract: contract}, nil
}
func NewIERC721Filterer(address common.Address, filterer bind.ContractFilterer) (*IERC721Filterer, error) {
	contract, err := bindIERC721(address, nil, nil, filterer)
	if err != nil {
		return nil, err
	}
	return &IERC721Filterer{contract: contract}, nil
}
func bindIERC721(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
	parsed, err := abi.JSON(strings.NewReader(IERC721ABI))
	if err != nil {
		return nil, err
	}
	return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil
}
func (_IERC721 *IERC721Raw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
	return _IERC721.Contract.IERC721Caller.contract.Call(opts, result, method, params...)
}
func (_IERC721 *IERC721Raw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
	return _IERC721.Contract.IERC721Transactor.contract.Transfer(opts)
}
func (_IERC721 *IERC721Raw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
	return _IERC721.Contract.IERC721Transactor.contract.Transact(opts, method, params...)
}
func (_IERC721 *IERC721CallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
	return _IERC721.Contract.contract.Call(opts, result, method, params...)
}
func (_IERC721 *IERC721TransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
	return _IERC721.Contract.contract.Transfer(opts)
}
func (_IERC721 *IERC721TransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
	return _IERC721.Contract.contract.Transact(opts, method, params...)
}
func (_IERC721 *IERC721Caller) BalanceOf(opts *bind.CallOpts, owner common.Address) (*big.Int, error) {
	var (
		ret0 = new(*big.Int)
	)
	out := ret0
	err := _IERC721.contract.Call(opts, out, "balanceOf", owner)
	return *ret0, err
}