prysm-pulse/sharding/contracts/sharding_manager.go

// Code generated - DO NOT EDIT.
// This file is a generated binding and any manual changes will be lost.

package contracts

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"
)

// SMCABI is the input ABI used to generate the binding from.
const SMCABI = "[{\"constant\":false,\"inputs\":[{\"name\":\"_shardId\",\"type\":\"int256\"},{\"name\":\"_expectedPeriodNumber\",\"type\":\"uint256\"},{\"name\":\"_periodStartPrevHash\",\"type\":\"bytes32\"},{\"name\":\"_parentHash\",\"type\":\"bytes32\"},{\"name\":\"_transactionRoot\",\"type\":\"bytes32\"},{\"name\":\"_coinbase\",\"type\":\"address\"},{\"name\":\"_stateRoot\",\"type\":\"bytes32\"},{\"name\":\"_receiptRoot\",\"type\":\"bytes32\"},{\"name\":\"_number\",\"type\":\"int256\"}],\"name\":\"addHeader\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"shardCount\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"numCollators\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_receiptId\",\"type\":\"int256\"},{\"name\":\"_txGasprice\",\"type\":\"uint256\"}],\"name\":\"updateGasPrice\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":true,\"stateMutability\":\"payable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_shardId\",\"type\":\"int256\"},{\"name\":\"_txStartgas\",\"type\":\"uint256\"},{\"name\":\"_txGasprice\",\"type\":\"uint256\"},{\"name\":\"_data\",\"type\":\"bytes12\"}],\"name\":\"txToShard\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"payable\":true,\"stateMutability\":\"payable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"name\":\"periodHead\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_shardId\",\"type\":\"int256\"},{\"name\":\"_period\",\"type\":\"uint256\"}],\"name\":\"getEligibleCollator\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_collatorIndex\",\"type\":\"int256\"}],\"name\":\"withdraw\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getCollationGasLimit\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"pure\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"name\":\"collators\",\"outputs\":[{\"name\":\"deposit\",\"type\":\"uint256\"},{\"name\":\"addr\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"int256\"},{\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"collationHeaders\",\"outputs\":[{\"name\":\"parentHash\",\"type\":\"bytes32\"},{\"name\":\"score\",\"type\":\"int256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"}],\"name\":\"isCollatorDeposited\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"deposit\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"payable\":true,\"stateMutability\":\"payable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"name\":\"receipts\",\"outputs\":[{\"name\":\"shardId\",\"type\":\"int256\"},{\"name\":\"txStartgas\",\"type\":\"uint256\"},{\"name\":\"txGasprice\",\"type\":\"uint256\"},{\"name\":\"value\",\"type\":\"uint256\"},{\"name\":\"data\",\"type\":\"bytes32\"},{\"name\":\"sender\",\"type\":\"address\"},{\"name\":\"to\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":fal

// SMCBin is the compiled bytecode used for deploying new contracts.
const SMCBin = `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

// DeploySMC deploys a new Ethereum contract, binding an instance of SMC to it.
func DeploySMC(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *SMC, error) {
	parsed, err := abi.JSON(strings.NewReader(SMCABI))
	if err != nil {
		return common.Address{}, nil, nil, err
	}
	address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(SMCBin), backend)
	if err != nil {
		return common.Address{}, nil, nil, err
	}
	return address, tx, &SMC{SMCCaller: SMCCaller{contract: contract}, SMCTransactor: SMCTransactor{contract: contract}, SMCFilterer: SMCFilterer{contract: contract}}, nil
}

// SMC is an auto generated Go binding around an Ethereum contract.
type SMC struct {
	SMCCaller     // Read-only binding to the contract
	SMCTransactor // Write-only binding to the contract
	SMCFilterer   // Log filterer for contract events
}

// SMCCaller is an auto generated read-only Go binding around an Ethereum contract.
type SMCCaller struct {
	contract *bind.BoundContract // Generic contract wrapper for the low level calls
}

// SMCTransactor is an auto generated write-only Go binding around an Ethereum contract.
type SMCTransactor struct {
	contract *bind.BoundContract // Generic contract wrapper for the low level calls
}

// SMCFilterer is an auto generated log filtering Go binding around an Ethereum contract events.
type SMCFilterer struct {
	contract *bind.BoundContract // Generic contract wrapper for the low level calls
}

// SMCSession is an auto generated Go binding around an Ethereum contract,
// with pre-set call and transact options.
type SMCSession struct {
	Contract     *SMC              // Generic contract binding to set the session for
	CallOpts     bind.CallOpts     // Call options to use throughout this session
	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
}

// SMCCallerSession is an auto generated read-only Go binding around an Ethereum contract,
// with pre-set call options.
type SMCCallerSession struct {
	Contract *SMCCaller    // Generic contract caller binding to set the session for
	CallOpts bind.CallOpts // Call options to use throughout this session
}

// SMCTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
// with pre-set transact options.
type SMCTransactorSession struct {
	Contract     *SMCTransactor    // Generic contract transactor binding to set the session for
	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
}

// SMCRaw is an auto generated low-level Go binding around an Ethereum contract.
type SMCRaw struct {
	Contract *SMC // Generic contract binding to access the raw methods on
}

// SMCCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
type SMCCallerRaw struct {
	Contract *SMCCaller // Generic read-only contract binding to access the raw methods on
}

// SMCTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
type SMCTransactorRaw struct {
	Contract *SMCTransactor // Generic write-only contract binding to access the raw methods on
}

// NewSMC creates a new instance of SMC, bound to a specific deployed contract.
func NewSMC(address common.Address, backend bind.ContractBackend) (*SMC, error) {
	contract, err := bindSMC(address, backend, backend, backend)
	if err != nil {
		return nil, err
	}
	return &SMC{SMCCaller: SMCCaller{contract: contract}, SMCTransactor: SMCTransactor{contract: contract}, SMCFilterer: SMCFilterer{contract: contract}}, nil
}

// NewSMCCaller creates a new read-only instance of SMC, bound to a specific deployed contract.
func NewSMCCaller(address common.Address, caller bind.ContractCaller) (*SMCCaller, error) {
	contract, err := bindSMC(address, caller, nil, nil)
	if err != nil {
		return nil, err
	}
	return &SMCCaller{contract: contract}, nil
}

// NewSMCTransactor creates a new write-only instance of SMC, bound to a specific deployed contract.
func NewSMCTransactor(address common.Address, transactor bind.ContractTransactor) (*SMCTransactor, error) {
	contract, err := bindSMC(address, nil, transactor, nil)
	if err != nil {
		return nil, err
	}
	return &SMCTransactor{contract: contract}, nil
}

// NewSMCFilterer creates a new log filterer instance of SMC, bound to a specific deployed contract.
func NewSMCFilterer(address common.Address, filterer bind.ContractFilterer) (*SMCFilterer, error) {
	contract, err := bindSMC(address, nil, nil, filterer)
	if err != nil {
		return nil, err
	}
	return &SMCFilterer{contract: contract}, nil
}

// bindSMC binds a generic wrapper to an already deployed contract.
func bindSMC(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
	parsed, err := abi.JSON(strings.NewReader(SMCABI))
	if err != nil {
		return nil, err
	}
	return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil
}

// Call invokes the (constant) contract method with params as input values and
// sets the output to result. The result type might be a single field for simple
// returns, a slice of interfaces for anonymous returns and a struct for named
// returns.
func (_SMC *SMCRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
	return _SMC.Contract.SMCCaller.contract.Call(opts, result, method, params...)
}

// Transfer initiates a plain transaction to move funds to the contract, calling
// its default method if one is available.
func (_SMC *SMCRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
	return _SMC.Contract.SMCTransactor.contract.Transfer(opts)
}

// Transact invokes the (paid) contract method with params as input values.
func (_SMC *SMCRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
	return _SMC.Contract.SMCTransactor.contract.Transact(opts, method, params...)
}

// Call invokes the (constant) contract method with params as input values and
// sets the output to result. The result type might be a single field for simple
// returns, a slice of interfaces for anonymous returns and a struct for named
// returns.
func (_SMC *SMCCallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
	return _SMC.Contract.contract.Call(opts, result, method, params...)
}

// Transfer initiates a plain transaction to move funds to the contract, calling
// its default method if one is available.
func (_SMC *SMCTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
	return _SMC.Contract.contract.Transfer(opts)
}

// Transact invokes the (paid) contract method with params as input values.
func (_SMC *SMCTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
	return _SMC.Contract.contract.Transact(opts, method, params...)
}

// CollationHeaders is a free data retrieval call binding the contract method 0xb9d8ef96.
//
// Solidity: function collationHeaders( int256,  bytes32) constant returns(parentHash bytes32, score int256)
func (_SMC *SMCCaller) CollationHeaders(opts *bind.CallOpts, arg0 *big.Int, arg1 [32]byte) (struct {
	ParentHash [32]byte
	Score      *big.Int
}, error) {
	ret := new(struct {
		ParentHash [32]byte
		Score      *big.Int
	})
	out := ret
	err := _SMC.contract.Call(opts, out, "collationHeaders", arg0, arg1)
	return *ret, err
}

// CollationHeaders is a free data retrieval call binding the contract method 0xb9d8ef96.
//
// Solidity: function collationHeaders( int256,  bytes32) constant returns(parentHash bytes32, score int256)
func (_SMC *SMCSession) CollationHeaders(arg0 *big.Int, arg1 [32]byte) (struct {
	ParentHash [32]byte
	Score      *big.Int
}, error) {
	return _SMC.Contract.CollationHeaders(&_SMC.CallOpts, arg0, arg1)
}

// CollationHeaders is a free data retrieval call binding the contract method 0xb9d8ef96.
//
// Solidity: function collationHeaders( int256,  bytes32) constant returns(parentHash bytes32, score int256)
func (_SMC *SMCCallerSession) CollationHeaders(arg0 *big.Int, arg1 [32]byte) (struct {
	ParentHash [32]byte
	Score      *big.Int
}, error) {
	return _SMC.Contract.CollationHeaders(&_SMC.CallOpts, arg0, arg1)
}

// Collators is a free data retrieval call binding the contract method 0x9c23c6ab.
//
// Solidity: function collators( int256) constant returns(deposit uint256, addr address)
func (_SMC *SMCCaller) Collators(opts *bind.CallOpts, arg0 *big.Int) (struct {
	Deposit *big.Int
	Addr    common.Address
}, error) {
	ret := new(struct {
		Deposit *big.Int
		Addr    common.Address
	})
	out := ret
	err := _SMC.contract.Call(opts, out, "collators", arg0)
	return *ret, err
}

// Collators is a free data retrieval call binding the contract method 0x9c23c6ab.
//
// Solidity: function collators( int256) constant returns(deposit uint256, addr address)
func (_SMC *SMCSession) Collators(arg0 *big.Int) (struct {
	Deposit *big.Int
	Addr    common.Address
}, error) {
	return _SMC.Contract.Collators(&_SMC.CallOpts, arg0)
}

// Collators is a free data retrieval call binding the contract method 0x9c23c6ab.
//
// Solidity: function collators( int256) constant returns(deposit uint256, addr address)
func (_SMC *SMCCallerSession) Collators(arg0 *big.Int) (struct {
	Deposit *big.Int
	Addr    common.Address
}, error) {
	return _SMC.Contract.Collators(&_SMC.CallOpts, arg0)
}

// GetCollationGasLimit is a free data retrieval call binding the contract method 0x934586ec.
//
// Solidity: function getCollationGasLimit() constant returns(uint256)
func (_SMC *SMCCaller) GetCollationGasLimit(opts *bind.CallOpts) (*big.Int, error) {
	var (
		ret0 = new(*big.Int)
	)
	out := ret0
	err := _SMC.contract.Call(opts, out, "getCollationGasLimit")
	return *ret0, err
}

// GetCollationGasLimit is a free data retrieval call binding the contract method 0x934586ec.
//
// Solidity: function getCollationGasLimit() constant returns(uint256)
func (_SMC *SMCSession) GetCollationGasLimit() (*big.Int, error) {
	return _SMC.Contract.GetCollationGasLimit(&_SMC.CallOpts)
}

// GetCollationGasLimit is a free data retrieval call binding the contract method 0x934586ec.
//
// Solidity: function getCollationGasLimit() constant returns(uint256)
func (_SMC *SMCCallerSession) GetCollationGasLimit() (*big.Int, error) {
	return _SMC.Contract.GetCollationGasLimit(&_SMC.CallOpts)
}

// GetEligibleCollator is a free data retrieval call binding the contract method 0x6115a1c3.
//
// Solidity: function getEligibleCollator(_shardId int256, _period uint256) constant returns(address)
func (_SMC *SMCCaller) GetEligibleCollator(opts *bind.CallOpts, _shardId *big.Int, _period *big.Int) (common.Address, error) {
	var (
		ret0 = new(common.Address)
	)
	out := ret0
	err := _SMC.contract.Call(opts, out, "getEligibleCollator", _shardId, _period)
	return *ret0, err
}

// GetEligibleCollator is a free data retrieval call binding the contract method 0x6115a1c3.
//
// Solidity: function getEligibleCollator(_shardId int256, _period uint256) constant returns(address)
func (_SMC *SMCSession) GetEligibleCollator(_shardId *big.Int, _period *big.Int) (common.Address, error) {
	return _SMC.Contract.GetEligibleCollator(&_SMC.CallOpts, _shardId, _period)
}

// GetEligibleCollator is a free data retrieval call binding the contract method 0x6115a1c3.
//
// Solidity: function getEligibleCollator(_shardId int256, _period uint256) constant returns(address)
func (_SMC *SMCCallerSession) GetEligibleCollator(_shardId *big.Int, _period *big.Int) (common.Address, error) {
	return _SMC.Contract.GetEligibleCollator(&_SMC.CallOpts, _shardId, _period)
}

// IsCollatorDeposited is a free data retrieval call binding the contract method 0xccb180e9.
//
// Solidity: function isCollatorDeposited( address) constant returns(bool)
func (_SMC *SMCCaller) IsCollatorDeposited(opts *bind.CallOpts, arg0 common.Address) (bool, error) {
	var (
		ret0 = new(bool)
	)
	out := ret0
	err := _SMC.contract.Call(opts, out, "isCollatorDeposited", arg0)
	return *ret0, err
}

// IsCollatorDeposited is a free data retrieval call binding the contract method 0xccb180e9.
//
// Solidity: function isCollatorDeposited( address) constant returns(bool)
func (_SMC *SMCSession) IsCollatorDeposited(arg0 common.Address) (bool, error) {
	return _SMC.Contract.IsCollatorDeposited(&_SMC.CallOpts, arg0)
}

// IsCollatorDeposited is a free data retrieval call binding the contract method 0xccb180e9.
//
// Solidity: function isCollatorDeposited( address) constant returns(bool)
func (_SMC *SMCCallerSession) IsCollatorDeposited(arg0 common.Address) (bool, error) {
	return _SMC.Contract.IsCollatorDeposited(&_SMC.CallOpts, arg0)
}

// NumCollators is a free data retrieval call binding the contract method 0x0908fb31.
//
// Solidity: function numCollators() constant returns(int256)
func (_SMC *SMCCaller) NumCollators(opts *bind.CallOpts) (*big.Int, error) {
	var (
		ret0 = new(*big.Int)
	)
	out := ret0
	err := _SMC.contract.Call(opts, out, "numCollators")
	return *ret0, err
}

// NumCollators is a free data retrieval call binding the contract method 0x0908fb31.
//
// Solidity: function numCollators() constant returns(int256)
func (_SMC *SMCSession) NumCollators() (*big.Int, error) {
	return _SMC.Contract.NumCollators(&_SMC.CallOpts)
}

// NumCollators is a free data retrieval call binding the contract method 0x0908fb31.
//
// Solidity: function numCollators() constant returns(int256)
func (_SMC *SMCCallerSession) NumCollators() (*big.Int, error) {
	return _SMC.Contract.NumCollators(&_SMC.CallOpts)
}

// PeriodHead is a free data retrieval call binding the contract method 0x584475db.
//
// Solidity: function periodHead( int256) constant returns(int256)
func (_SMC *SMCCaller) PeriodHead(opts *bind.CallOpts, arg0 *big.Int) (*big.Int, error) {
	var (
		ret0 = new(*big.Int)
	)
	out := ret0
	err := _SMC.contract.Call(opts, out, "periodHead", arg0)
	return *ret0, err
}

// PeriodHead is a free data retrieval call binding the contract method 0x584475db.
//
// Solidity: function periodHead( int256) constant returns(int256)
func (_SMC *SMCSession) PeriodHead(arg0 *big.Int) (*big.Int, error) {
	return _SMC.Contract.PeriodHead(&_SMC.CallOpts, arg0)
}

// PeriodHead is a free data retrieval call binding the contract method 0x584475db.
//
// Solidity: function periodHead( int256) constant returns(int256)
func (_SMC *SMCCallerSession) PeriodHead(arg0 *big.Int) (*big.Int, error) {
	return _SMC.Contract.PeriodHead(&_SMC.CallOpts, arg0)
}

// Receipts is a free data retrieval call binding the contract method 0xd19ca568.
//
// Solidity: function receipts( int256) constant returns(shardId int256, txStartgas uint256, txGasprice uint256, value uint256, data bytes32, sender address, to address)
func (_SMC *SMCCaller) Receipts(opts *bind.CallOpts, arg0 *big.Int) (struct {
	ShardId    *big.Int
	TxStartgas *big.Int
	TxGasprice *big.Int
	Value      *big.Int
	Data       [32]byte
	Sender     common.Address
	To         common.Address
}, error) {
	ret := new(struct {
		ShardId    *big.Int
		TxStartgas *big.Int
		TxGasprice *big.Int
		Value      *big.Int
		Data       [32]byte
		Sender     common.Address
		To         common.Address
	})
	out := ret
	err := _SMC.contract.Call(opts, out, "receipts", arg0)
	return *ret, err
}

// Receipts is a free data retrieval call binding the contract method 0xd19ca568.
//
// Solidity: function receipts( int256) constant returns(shardId int256, txStartgas uint256, txGasprice uint256, value uint256, data bytes32, sender address, to address)
func (_SMC *SMCSession) Receipts(arg0 *big.Int) (struct {
	ShardId    *big.Int
	TxStartgas *big.Int
	TxGasprice *big.Int
	Value      *big.Int
	Data       [32]byte
	Sender     common.Address
	To         common.Address
}, error) {
	return _SMC.Contract.Receipts(&_SMC.CallOpts, arg0)
}

// Receipts is a free data retrieval call binding the contract method 0xd19ca568.
//
// Solidity: function receipts( int256) constant returns(shardId int256, txStartgas uint256, txGasprice uint256, value uint256, data bytes32, sender address, to address)
func (_SMC *SMCCallerSession) Receipts(arg0 *big.Int) (struct {
	ShardId    *big.Int
	TxStartgas *big.Int
	TxGasprice *big.Int
	Value      *big.Int
	Data       [32]byte
	Sender     common.Address
	To         common.Address
}, error) {
	return _SMC.Contract.Receipts(&_SMC.CallOpts, arg0)
}

// ShardCount is a free data retrieval call binding the contract method 0x04e9c77a.
//
// Solidity: function shardCount() constant returns(int256)
func (_SMC *SMCCaller) ShardCount(opts *bind.CallOpts) (*big.Int, error) {
	var (
		ret0 = new(*big.Int)
	)
	out := ret0
	err := _SMC.contract.Call(opts, out, "shardCount")
	return *ret0, err
}

// ShardCount is a free data retrieval call binding the contract method 0x04e9c77a.
//
// Solidity: function shardCount() constant returns(int256)
func (_SMC *SMCSession) ShardCount() (*big.Int, error) {
	return _SMC.Contract.ShardCount(&_SMC.CallOpts)
}

// ShardCount is a free data retrieval call binding the contract method 0x04e9c77a.
//
// Solidity: function shardCount() constant returns(int256)
func (_SMC *SMCCallerSession) ShardCount() (*big.Int, error) {
	return _SMC.Contract.ShardCount(&_SMC.CallOpts)
}

// AddHeader is a paid mutator transaction binding the contract method 0x0341518d.
//
// Solidity: function addHeader(_shardId int256, _expectedPeriodNumber uint256, _periodStartPrevHash bytes32, _parentHash bytes32, _transactionRoot bytes32, _coinbase address, _stateRoot bytes32, _receiptRoot bytes32, _number int256) returns(bool)
func (_SMC *SMCTransactor) AddHeader(opts *bind.TransactOpts, _shardId *big.Int, _expectedPeriodNumber *big.Int, _periodStartPrevHash [32]byte, _parentHash [32]byte, _transactionRoot [32]byte, _coinbase common.Address, _stateRoot [32]byte, _receiptRoot [32]byte, _number *big.Int) (*types.Transaction, error) {
	return _SMC.contract.Transact(opts, "addHeader", _shardId, _expectedPeriodNumber, _periodStartPrevHash, _parentHash, _transactionRoot, _coinbase, _stateRoot, _receiptRoot, _number)
}

// AddHeader is a paid mutator transaction binding the contract method 0x0341518d.
//
// Solidity: function addHeader(_shardId int256, _expectedPeriodNumber uint256, _periodStartPrevHash bytes32, _parentHash bytes32, _transactionRoot bytes32, _coinbase address, _stateRoot bytes32, _receiptRoot bytes32, _number int256) returns(bool)
func (_SMC *SMCSession) AddHeader(_shardId *big.Int, _expectedPeriodNumber *big.Int, _periodStartPrevHash [32]byte, _parentHash [32]byte, _transactionRoot [32]byte, _coinbase common.Address, _stateRoot [32]byte, _receiptRoot [32]byte, _number *big.Int) (*types.Transaction, error) {
	return _SMC.Contract.AddHeader(&_SMC.TransactOpts, _shardId, _expectedPeriodNumber, _periodStartPrevHash, _parentHash, _transactionRoot, _coinbase, _stateRoot, _receiptRoot, _number)
}

// AddHeader is a paid mutator transaction binding the contract method 0x0341518d.
//
// Solidity: function addHeader(_shardId int256, _expectedPeriodNumber uint256, _periodStartPrevHash bytes32, _parentHash bytes32, _transactionRoot bytes32, _coinbase address, _stateRoot bytes32, _receiptRoot bytes32, _number int256) returns(bool)
func (_SMC *SMCTransactorSession) AddHeader(_shardId *big.Int, _expectedPeriodNumber *big.Int, _periodStartPrevHash [32]byte, _parentHash [32]byte, _transactionRoot [32]byte, _coinbase common.Address, _stateRoot [32]byte, _receiptRoot [32]byte, _number *big.Int) (*types.Transaction, error) {
	return _SMC.Contract.AddHeader(&_SMC.TransactOpts, _shardId, _expectedPeriodNumber, _periodStartPrevHash, _parentHash, _transactionRoot, _coinbase, _stateRoot, _receiptRoot, _number)
}

// Deposit is a paid mutator transaction binding the contract method 0xd0e30db0.
//
// Solidity: function deposit() returns(int256)
func (_SMC *SMCTransactor) Deposit(opts *bind.TransactOpts) (*types.Transaction, error) {
	return _SMC.contract.Transact(opts, "deposit")
}

// Deposit is a paid mutator transaction binding the contract method 0xd0e30db0.
//
// Solidity: function deposit() returns(int256)
func (_SMC *SMCSession) Deposit() (*types.Transaction, error) {
	return _SMC.Contract.Deposit(&_SMC.TransactOpts)
}

// Deposit is a paid mutator transaction binding the contract method 0xd0e30db0.
//
// Solidity: function deposit() returns(int256)
func (_SMC *SMCTransactorSession) Deposit() (*types.Transaction, error) {
	return _SMC.Contract.Deposit(&_SMC.TransactOpts)
}

// TxToShard is a paid mutator transaction binding the contract method 0x372a9e2a.
//
// Solidity: function txToShard(_to address, _shardId int256, _txStartgas uint256, _txGasprice uint256, _data bytes12) returns(int256)
func (_SMC *SMCTransactor) TxToShard(opts *bind.TransactOpts, _to common.Address, _shardId *big.Int, _txStartgas *big.Int, _txGasprice *big.Int, _data [12]byte) (*types.Transaction, error) {
	return _SMC.contract.Transact(opts, "txToShard", _to, _shardId, _txStartgas, _txGasprice, _data)
}

// TxToShard is a paid mutator transaction binding the contract method 0x372a9e2a.
//
// Solidity: function txToShard(_to address, _shardId int256, _txStartgas uint256, _txGasprice uint256, _data bytes12) returns(int256)
func (_SMC *SMCSession) TxToShard(_to common.Address, _shardId *big.Int, _txStartgas *big.Int, _txGasprice *big.Int, _data [12]byte) (*types.Transaction, error) {
	return _SMC.Contract.TxToShard(&_SMC.TransactOpts, _to, _shardId, _txStartgas, _txGasprice, _data)
}

// TxToShard is a paid mutator transaction binding the contract method 0x372a9e2a.
//
// Solidity: function txToShard(_to address, _shardId int256, _txStartgas uint256, _txGasprice uint256, _data bytes12) returns(int256)
func (_SMC *SMCTransactorSession) TxToShard(_to common.Address, _shardId *big.Int, _txStartgas *big.Int, _txGasprice *big.Int, _data [12]byte) (*types.Transaction, error) {
	return _SMC.Contract.TxToShard(&_SMC.TransactOpts, _to, _shardId, _txStartgas, _txGasprice, _data)
}

// UpdateGasPrice is a paid mutator transaction binding the contract method 0x22131389.
//
// Solidity: function updateGasPrice(_receiptId int256, _txGasprice uint256) returns(bool)
func (_SMC *SMCTransactor) UpdateGasPrice(opts *bind.TransactOpts, _receiptId *big.Int, _txGasprice *big.Int) (*types.Transaction, error) {
	return _SMC.contract.Transact(opts, "updateGasPrice", _receiptId, _txGasprice)
}

// UpdateGasPrice is a paid mutator transaction binding the contract method 0x22131389.
//
// Solidity: function updateGasPrice(_receiptId int256, _txGasprice uint256) returns(bool)
func (_SMC *SMCSession) UpdateGasPrice(_receiptId *big.Int, _txGasprice *big.Int) (*types.Transaction, error) {
	return _SMC.Contract.UpdateGasPrice(&_SMC.TransactOpts, _receiptId, _txGasprice)
}

// UpdateGasPrice is a paid mutator transaction binding the contract method 0x22131389.
//
// Solidity: function updateGasPrice(_receiptId int256, _txGasprice uint256) returns(bool)
func (_SMC *SMCTransactorSession) UpdateGasPrice(_receiptId *big.Int, _txGasprice *big.Int) (*types.Transaction, error) {
	return _SMC.Contract.UpdateGasPrice(&_SMC.TransactOpts, _receiptId, _txGasprice)
}

// Withdraw is a paid mutator transaction binding the contract method 0x7e62eab8.
//
// Solidity: function withdraw(_collatorIndex int256) returns()
func (_SMC *SMCTransactor) Withdraw(opts *bind.TransactOpts, _collatorIndex *big.Int) (*types.Transaction, error) {
	return _SMC.contract.Transact(opts, "withdraw", _collatorIndex)
}

// Withdraw is a paid mutator transaction binding the contract method 0x7e62eab8.
//
// Solidity: function withdraw(_collatorIndex int256) returns()
func (_SMC *SMCSession) Withdraw(_collatorIndex *big.Int) (*types.Transaction, error) {
	return _SMC.Contract.Withdraw(&_SMC.TransactOpts, _collatorIndex)
}

// Withdraw is a paid mutator transaction binding the contract method 0x7e62eab8.
//
// Solidity: function withdraw(_collatorIndex int256) returns()
func (_SMC *SMCTransactorSession) Withdraw(_collatorIndex *big.Int) (*types.Transaction, error) {
	return _SMC.Contract.Withdraw(&_SMC.TransactOpts, _collatorIndex)
}

// SMCCollationAddedIterator is returned from FilterCollationAdded and is used to iterate over the raw logs and unpacked data for CollationAdded events raised by the SMC contract.
type SMCCollationAddedIterator struct {
	Event *SMCCollationAdded // Event containing the contract specifics and raw log

	contract *bind.BoundContract // Generic contract to use for unpacking event data
	event    string              // Event name to use for unpacking event data

	logs chan types.Log        // Log channel receiving the found contract events
	sub  ethereum.Subscription // Subscription for errors, completion and termination
	done bool                  // Whether the subscription completed delivering logs
	fail error                 // Occurred error to stop iteration
}

// Next advances the iterator to the subsequent event, returning whether there
// are any more events found. In case of a retrieval or parsing error, false is
// returned and Error() can be queried for the exact failure.
func (it *SMCCollationAddedIterator) Next() bool {
	// If the iterator failed, stop iterating
	if it.fail != nil {
		return false
	}
	// If the iterator completed, deliver directly whatever's available
	if it.done {
		select {
		case log := <-it.logs:
			it.Event = new(SMCCollationAdded)
			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
				it.fail = err
				return false
			}
			it.Event.Raw = log
			return true

		default:
			return false
		}
	}
	// Iterator still in progress, wait for either a data or an error event
	select {
	case log := <-it.logs:
		it.Event = new(SMCCollationAdded)
		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
			it.fail = err
			return false
		}
		it.Event.Raw = log
		return true

	case err := <-it.sub.Err():
		it.done = true
		it.fail = err
		return it.Next()
	}
}

// Error returns any retrieval or parsing error occurred during filtering.
func (it *SMCCollationAddedIterator) Error() error {
	return it.fail
}

// Close terminates the iteration process, releasing any pending underlying
// resources.
func (it *SMCCollationAddedIterator) Close() error {
	it.sub.Unsubscribe()
	return nil
}

// SMCCollationAdded represents a CollationAdded event raised by the SMC contract.
type SMCCollationAdded struct {
	ShardId              *big.Int
	ExpectedPeriodNumber *big.Int
	PeriodStartPrevHash  [32]byte
	ParentHash           [32]byte
	TransactionRoot      [32]byte
	Coinbase             common.Address
	StateRoot            [32]byte
	ReceiptRoot          [32]byte
	Number               *big.Int
	IsNewHead            bool
	Score                *big.Int
	Raw                  types.Log // Blockchain specific contextual infos
}

// FilterCollationAdded is a free log retrieval operation binding the contract event 0x788a01fdbeb989d24e706cdd2993ca4213400e7b5fa631819b2acfe8ebad4135.
//
// Solidity: event CollationAdded(shardId indexed int256, expectedPeriodNumber uint256, periodStartPrevHash bytes32, parentHash bytes32, transactionRoot bytes32, coinbase address, stateRoot bytes32, receiptRoot bytes32, number int256, isNewHead bool, score int256)
func (_SMC *SMCFilterer) FilterCollationAdded(opts *bind.FilterOpts, shardId []*big.Int) (*SMCCollationAddedIterator, error) {

	var shardIdRule []interface{}
	for _, shardIdItem := range shardId {
		shardIdRule = append(shardIdRule, shardIdItem)
	}

	logs, sub, err := _SMC.contract.FilterLogs(opts, "CollationAdded", shardIdRule)
	if err != nil {
		return nil, err
	}
	return &SMCCollationAddedIterator{contract: _SMC.contract, event: "CollationAdded", logs: logs, sub: sub}, nil
}

// WatchCollationAdded is a free log subscription operation binding the contract event 0x788a01fdbeb989d24e706cdd2993ca4213400e7b5fa631819b2acfe8ebad4135.
//
// Solidity: event CollationAdded(shardId indexed int256, expectedPeriodNumber uint256, periodStartPrevHash bytes32, parentHash bytes32, transactionRoot bytes32, coinbase address, stateRoot bytes32, receiptRoot bytes32, number int256, isNewHead bool, score int256)
func (_SMC *SMCFilterer) WatchCollationAdded(opts *bind.WatchOpts, sink chan<- *SMCCollationAdded, shardId []*big.Int) (event.Subscription, error) {

	var shardIdRule []interface{}
	for _, shardIdItem := range shardId {
		shardIdRule = append(shardIdRule, shardIdItem)
	}

	logs, sub, err := _SMC.contract.WatchLogs(opts, "CollationAdded", shardIdRule)
	if err != nil {
		return nil, err
	}
	return event.NewSubscription(func(quit <-chan struct{}) error {
		defer sub.Unsubscribe()
		for {
			select {
			case log := <-logs:
				// New log arrived, parse the event and forward to the user
				event := new(SMCCollationAdded)
				if err := _SMC.contract.UnpackLog(event, "CollationAdded", log); err != nil {
					return err
				}
				event.Raw = log

				select {
				case sink <- event:
				case err := <-sub.Err():
					return err
				case <-quit:
					return nil
				}
			case err := <-sub.Err():
				return err
			case <-quit:
				return nil
			}
		}
	}), nil
}

// SMCDepositIterator is returned from FilterDeposit and is used to iterate over the raw logs and unpacked data for Deposit events raised by the SMC contract.
type SMCDepositIterator struct {
	Event *SMCDeposit // Event containing the contract specifics and raw log

	contract *bind.BoundContract // Generic contract to use for unpacking event data
	event    string              // Event name to use for unpacking event data

	logs chan types.Log        // Log channel receiving the found contract events
	sub  ethereum.Subscription // Subscription for errors, completion and termination
	done bool                  // Whether the subscription completed delivering logs
	fail error                 // Occurred error to stop iteration
}

// Next advances the iterator to the subsequent event, returning whether there
// are any more events found. In case of a retrieval or parsing error, false is
// returned and Error() can be queried for the exact failure.
func (it *SMCDepositIterator) Next() bool {
	// If the iterator failed, stop iterating
	if it.fail != nil {
		return false
	}
	// If the iterator completed, deliver directly whatever's available
	if it.done {
		select {
		case log := <-it.logs:
			it.Event = new(SMCDeposit)
			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
				it.fail = err
				return false
			}
			it.Event.Raw = log
			return true

		default:
			return false
		}
	}
	// Iterator still in progress, wait for either a data or an error event
	select {
	case log := <-it.logs:
		it.Event = new(SMCDeposit)
		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
			it.fail = err
			return false
		}
		it.Event.Raw = log
		return true

	case err := <-it.sub.Err():
		it.done = true
		it.fail = err
		return it.Next()
	}
}

// Error returns any retrieval or parsing error occurred during filtering.
func (it *SMCDepositIterator) Error() error {
	return it.fail
}

// Close terminates the iteration process, releasing any pending underlying
// resources.
func (it *SMCDepositIterator) Close() error {
	it.sub.Unsubscribe()
	return nil
}

// SMCDeposit represents a Deposit event raised by the SMC contract.
type SMCDeposit struct {
	Collator common.Address
	Index    *big.Int
	Raw      types.Log // Blockchain specific contextual infos
}

// FilterDeposit is a free log retrieval operation binding the contract event 0xd8a6d38df847dcba70dfdeb4948fb1457d61a81d132801f40dc9c00d52dfd478.
//
// Solidity: event Deposit(collator address, index int256)
func (_SMC *SMCFilterer) FilterDeposit(opts *bind.FilterOpts) (*SMCDepositIterator, error) {

	logs, sub, err := _SMC.contract.FilterLogs(opts, "Deposit")
	if err != nil {
		return nil, err
	}
	return &SMCDepositIterator{contract: _SMC.contract, event: "Deposit", logs: logs, sub: sub}, nil
}

// WatchDeposit is a free log subscription operation binding the contract event 0xd8a6d38df847dcba70dfdeb4948fb1457d61a81d132801f40dc9c00d52dfd478.
//
// Solidity: event Deposit(collator address, index int256)
func (_SMC *SMCFilterer) WatchDeposit(opts *bind.WatchOpts, sink chan<- *SMCDeposit) (event.Subscription, error) {

	logs, sub, err := _SMC.contract.WatchLogs(opts, "Deposit")
	if err != nil {
		return nil, err
	}
	return event.NewSubscription(func(quit <-chan struct{}) error {
		defer sub.Unsubscribe()
		for {
			select {
			case log := <-logs:
				// New log arrived, parse the event and forward to the user
				event := new(SMCDeposit)
				if err := _SMC.contract.UnpackLog(event, "Deposit", log); err != nil {
					return err
				}
				event.Raw = log

				select {
				case sink <- event:
				case err := <-sub.Err():
					return err
				case <-quit:
					return nil
				}
			case err := <-sub.Err():
				return err
			case <-quit:
				return nil
			}
		}
	}), nil
}

// SMCTxToShardIterator is returned from FilterTxToShard and is used to iterate over the raw logs and unpacked data for TxToShard events raised by the SMC contract.
type SMCTxToShardIterator struct {
	Event *SMCTxToShard // Event containing the contract specifics and raw log

	contract *bind.BoundContract // Generic contract to use for unpacking event data
	event    string              // Event name to use for unpacking event data

	logs chan types.Log        // Log channel receiving the found contract events
	sub  ethereum.Subscription // Subscription for errors, completion and termination
	done bool                  // Whether the subscription completed delivering logs
	fail error                 // Occurred error to stop iteration
}

// Next advances the iterator to the subsequent event, returning whether there
// are any more events found. In case of a retrieval or parsing error, false is
// returned and Error() can be queried for the exact failure.
func (it *SMCTxToShardIterator) Next() bool {
	// If the iterator failed, stop iterating
	if it.fail != nil {
		return false
	}
	// If the iterator completed, deliver directly whatever's available
	if it.done {
		select {
		case log := <-it.logs:
			it.Event = new(SMCTxToShard)
			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
				it.fail = err
				return false
			}
			it.Event.Raw = log
			return true

		default:
			return false
		}
	}
	// Iterator still in progress, wait for either a data or an error event
	select {
	case log := <-it.logs:
		it.Event = new(SMCTxToShard)
		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
			it.fail = err
			return false
		}
		it.Event.Raw = log
		return true

	case err := <-it.sub.Err():
		it.done = true
		it.fail = err
		return it.Next()
	}
}

// Error returns any retrieval or parsing error occurred during filtering.
func (it *SMCTxToShardIterator) Error() error {
	return it.fail
}

// Close terminates the iteration process, releasing any pending underlying
// resources.
func (it *SMCTxToShardIterator) Close() error {
	it.sub.Unsubscribe()
	return nil
}

// SMCTxToShard represents a TxToShard event raised by the SMC contract.
type SMCTxToShard struct {
	To        common.Address
	ShardId   *big.Int
	ReceiptId *big.Int
	Raw       types.Log // Blockchain specific contextual infos
}

// FilterTxToShard is a free log retrieval operation binding the contract event 0xfc322e0c42ee41e0d74b940ceeee9cd5971acdd6ace8ff8010ee7134c31d9ea5.
//
// Solidity: event TxToShard(to indexed address, shardId indexed int256, receiptId int256)
func (_SMC *SMCFilterer) FilterTxToShard(opts *bind.FilterOpts, to []common.Address, shardId []*big.Int) (*SMCTxToShardIterator, error) {

	var toRule []interface{}
	for _, toItem := range to {
		toRule = append(toRule, toItem)
	}
	var shardIdRule []interface{}
	for _, shardIdItem := range shardId {
		shardIdRule = append(shardIdRule, shardIdItem)
	}

	logs, sub, err := _SMC.contract.FilterLogs(opts, "TxToShard", toRule, shardIdRule)
	if err != nil {
		return nil, err
	}
	return &SMCTxToShardIterator{contract: _SMC.contract, event: "TxToShard", logs: logs, sub: sub}, nil
}

// WatchTxToShard is a free log subscription operation binding the contract event 0xfc322e0c42ee41e0d74b940ceeee9cd5971acdd6ace8ff8010ee7134c31d9ea5.
//
// Solidity: event TxToShard(to indexed address, shardId indexed int256, receiptId int256)
func (_SMC *SMCFilterer) WatchTxToShard(opts *bind.WatchOpts, sink chan<- *SMCTxToShard, to []common.Address, shardId []*big.Int) (event.Subscription, error) {

	var toRule []interface{}
	for _, toItem := range to {
		toRule = append(toRule, toItem)
	}
	var shardIdRule []interface{}
	for _, shardIdItem := range shardId {
		shardIdRule = append(shardIdRule, shardIdItem)
	}

	logs, sub, err := _SMC.contract.WatchLogs(opts, "TxToShard", toRule, shardIdRule)
	if err != nil {
		return nil, err
	}
	return event.NewSubscription(func(quit <-chan struct{}) error {
		defer sub.Unsubscribe()
		for {
			select {
			case log := <-logs:
				// New log arrived, parse the event and forward to the user
				event := new(SMCTxToShard)
				if err := _SMC.contract.UnpackLog(event, "TxToShard", log); err != nil {
					return err
				}
				event.Raw = log

				select {
				case sink <- event:
				case err := <-sub.Err():
					return err
				case <-quit:
					return nil
				}
			case err := <-sub.Err():
				return err
			case <-quit:
				return nil
			}
		}
	}), nil
}

// SMCWithdrawIterator is returned from FilterWithdraw and is used to iterate over the raw logs and unpacked data for Withdraw events raised by the SMC contract.
type SMCWithdrawIterator struct {
	Event *SMCWithdraw // Event containing the contract specifics and raw log

	contract *bind.BoundContract // Generic contract to use for unpacking event data
	event    string              // Event name to use for unpacking event data

	logs chan types.Log        // Log channel receiving the found contract events
	sub  ethereum.Subscription // Subscription for errors, completion and termination
	done bool                  // Whether the subscription completed delivering logs
	fail error                 // Occurred error to stop iteration
}

// Next advances the iterator to the subsequent event, returning whether there
// are any more events found. In case of a retrieval or parsing error, false is
// returned and Error() can be queried for the exact failure.
func (it *SMCWithdrawIterator) Next() bool {
	// If the iterator failed, stop iterating
	if it.fail != nil {
		return false
	}
	// If the iterator completed, deliver directly whatever's available
	if it.done {
		select {
		case log := <-it.logs:
			it.Event = new(SMCWithdraw)
			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
				it.fail = err
				return false
			}
			it.Event.Raw = log
			return true

		default:
			return false
		}
	}
	// Iterator still in progress, wait for either a data or an error event
	select {
	case log := <-it.logs:
		it.Event = new(SMCWithdraw)
		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
			it.fail = err
			return false
		}
		it.Event.Raw = log
		return true

	case err := <-it.sub.Err():
		it.done = true
		it.fail = err
		return it.Next()
	}
}

// Error returns any retrieval or parsing error occurred during filtering.
func (it *SMCWithdrawIterator) Error() error {
	return it.fail
}

// Close terminates the iteration process, releasing any pending underlying
// resources.
func (it *SMCWithdrawIterator) Close() error {
	it.sub.Unsubscribe()
	return nil
}

// SMCWithdraw represents a Withdraw event raised by the SMC contract.
type SMCWithdraw struct {
	Index *big.Int
	Raw   types.Log // Blockchain specific contextual infos
}

// FilterWithdraw is a free log retrieval operation binding the contract event 0xe13f360aa18d414ccdb598da6c447faa89d0477ffc7549dab5678fca76910b8c.
//
// Solidity: event Withdraw(index int256)
func (_SMC *SMCFilterer) FilterWithdraw(opts *bind.FilterOpts) (*SMCWithdrawIterator, error) {

	logs, sub, err := _SMC.contract.FilterLogs(opts, "Withdraw")
	if err != nil {
		return nil, err
	}
	return &SMCWithdrawIterator{contract: _SMC.contract, event: "Withdraw", logs: logs, sub: sub}, nil
}

// WatchWithdraw is a free log subscription operation binding the contract event 0xe13f360aa18d414ccdb598da6c447faa89d0477ffc7549dab5678fca76910b8c.
//
// Solidity: event Withdraw(index int256)
func (_SMC *SMCFilterer) WatchWithdraw(opts *bind.WatchOpts, sink chan<- *SMCWithdraw) (event.Subscription, error) {

	logs, sub, err := _SMC.contract.WatchLogs(opts, "Withdraw")
	if err != nil {
		return nil, err
	}
	return event.NewSubscription(func(quit <-chan struct{}) error {
		defer sub.Unsubscribe()
		for {
			select {
			case log := <-logs:
				// New log arrived, parse the event and forward to the user
				event := new(SMCWithdraw)
				if err := _SMC.contract.UnpackLog(event, "Withdraw", log); err != nil {
					return err
				}
				event.Raw = log

				select {
				case sink <- event:
				case err := <-sub.Err():
					return err
				case <-quit:
					return nil
				}
			case err := <-sub.Err():
				return err
			case <-quit:
				return nil
			}
		}
	}), nil
}