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Problem: evm contract can't call native module message #45

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merged 12 commits into from
Sep 9, 2021
Merged

Problem: evm contract can't call native module message #45

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9244e34
Problem: evm contract can't call native module message
yihuang Sep 3, 2021
50b765e
run gen-cronos-contracts
yihuang Sep 8, 2021
b90b157
rename fee_amount -> bridge_fee
yihuang Sep 8, 2021
eff32dd
add evmhooks unit tests
yihuang Sep 8, 2021
85b0d5e
run gen-cronos-contracts
yihuang Sep 8, 2021
9416bab
fix integration test
yihuang Sep 8, 2021
0a4714d
move EvmLogHandler to types module
yihuang Sep 8, 2021
bea3c97
move log handlers into separated file
yihuang Sep 8, 2021
30d15bb
ensure the interface
yihuang Sep 8, 2021
b492b32
fix comments, const, error messages
yihuang Sep 8, 2021
593189c
add ethereum(gravity bridge) transfer unit tests
yihuang Sep 8, 2021
6c5bd94
rename event
yihuang Sep 9, 2021
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2 changes: 1 addition & 1 deletion CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@

- [cronos#11](https://github.com/crypto-org-chain/cronos/pull/11) embed gravity bridge module


- [cronos#45](https://github.com/crypto-org-chain/cronos/pull/45) Allow evm contract to call bank send and gravity send

*August 19, 2021*

Expand Down
3 changes: 3 additions & 0 deletions Makefile
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Expand Up @@ -6,6 +6,7 @@ GOPATH ?= $(shell $(GO) env GOPATH)
BINDIR ?= ~/go/bin


all: build
build: go.sum
@go build -mod=readonly $(BUILD_FLAGS) $(BUILD_TAGS) -o $(BUILDDIR)/cronosd ./cmd/cronosd

Expand All @@ -15,6 +16,8 @@ install: go.sum
test:
@go test -v -mod=readonly $(PACKAGES) -coverprofile=$(COVERAGE) -covermode=atomic

.PHONY: build install test

###############################################################################
### Linting ###
###############################################################################
Expand Down
5 changes: 5 additions & 0 deletions app/app.go
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Original file line number Diff line number Diff line change
Expand Up @@ -426,6 +426,11 @@ func New(

app.GravityKeeper = *gravityKeeper.SetHooks(app.CronosKeeper)

app.EvmKeeper.SetHooks(cronosmodulekeeper.NewLogProcessEvmHook(
cronosmodulekeeper.NewNativeTransferHandler(app.BankKeeper, app.CronosKeeper),
cronosmodulekeeper.NewEthereumTransferHandler(gravitykeeper.NewMsgServerImpl(app.GravityKeeper), app.CronosKeeper),
))

// register the staking hooks
// NOTE: stakingKeeper above is passed by reference, so that it will contain these hooks
app.StakingKeeper = *stakingKeeper.SetHooks(
Expand Down
16 changes: 15 additions & 1 deletion contracts/src/ModuleCRC20.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -5,9 +5,17 @@ import "ds-token/token.sol";
contract ModuleCRC20 is DSToken {
// sha256('cronos')[:20]
address constant module_address = 0x6526B48f897f6e08067dF00A1821d783cbC2af8b;
string denom;

constructor(string memory denom, uint8 decimals_) DSToken(denom) public {
event __CronosEthereumTransfer(address recipient, uint256 amount, uint256 bridge_fee);

constructor(string memory denom_, uint8 decimals_) DSToken(denom) public {
decimals = decimals_;
denom = denom_;
}

function native_denom() public view returns (string memory) {
return denom;
}

function mint_by_cronos_module(address addr, uint amount) public {
Expand All @@ -23,4 +31,10 @@ contract ModuleCRC20 is DSToken {
totalSupply = sub(totalSupply, amount);
emit Burn(addr, amount);
}

// send to ethereum through gravity bridge
function send_to_ethereum(address recipient, uint amount, uint bridge_fee) public {
burn(msg.sender, add(amount, bridge_fee));
emit __CronosEthereumTransfer(recipient, amount, bridge_fee);
}
}
1 change: 1 addition & 0 deletions contracts/src/ModuleCRC20.t.sol
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Expand Up @@ -13,6 +13,7 @@ contract ModuleCRC20Test is DSTest {

function test_basic_sanity() public {
assertEq(uint(token.decimals()), uint(0));
assertEq(token.native_denom(), "gravity0x0");
}

function testFail_mint_by_cronos_module() public {
Expand Down
6 changes: 3 additions & 3 deletions go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -4,21 +4,21 @@ go 1.16

require (
github.com/armon/go-metrics v0.3.9
github.com/cosmos/cosmos-sdk v0.43.0
github.com/cosmos/cosmos-sdk v0.44.0
github.com/cosmos/ibc-go v1.0.1
github.com/ethereum/go-ethereum v1.10.3
github.com/gogo/protobuf v1.3.3
github.com/gorilla/mux v1.8.0
github.com/grpc-ecosystem/grpc-gateway v1.16.0
github.com/peggyjv/gravity-bridge/module v0.1.21
github.com/peggyjv/gravity-bridge/module v0.2.0
github.com/spf13/cast v1.4.1
github.com/spf13/cobra v1.2.1
github.com/spf13/pflag v1.0.5
github.com/stretchr/testify v1.7.0
github.com/tendermint/spm v0.0.0-20210524110815-6d7452d2dc4a
github.com/tendermint/tendermint v0.34.12
github.com/tendermint/tm-db v0.6.4
github.com/tharsis/ethermint v0.4.2-0.20210831155846-516ffe2bf176
github.com/tharsis/ethermint v0.4.2-0.20210902174739-5fac39db38ed
google.golang.org/genproto v0.0.0-20210825212027-de86158e7fda
google.golang.org/grpc v1.40.0
gopkg.in/yaml.v2 v2.4.0
Expand Down
11 changes: 6 additions & 5 deletions go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -198,8 +198,9 @@ github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7
github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
github.com/cosmos/cosmos-sdk v0.43.0 h1:l2GXJMDVtJyHb35pDUCw+uyr6eZtBo8vt+7PSsq+Fjo=
github.com/cosmos/cosmos-sdk v0.43.0/go.mod h1:ctcrTEAhei9s8O3KSNvL0dxe+fVQGp07QyRb/7H9JYE=
github.com/cosmos/cosmos-sdk v0.44.0 h1:eOSjACNtTnThEJ62IsS+pMm3OIU6hgMVqrp4TZClLZo=
github.com/cosmos/cosmos-sdk v0.44.0/go.mod h1:orG0jzFJ2KsDfzLd/X0JSOMzF4Oxc/BQz2GkcYF4gRE=
github.com/cosmos/go-bip39 v0.0.0-20180819234021-555e2067c45d/go.mod h1:tSxLoYXyBmiFeKpvmq4dzayMdCjCnu8uqmCysIGBT2Y=
github.com/cosmos/go-bip39 v1.0.0 h1:pcomnQdrdH22njcAatO0yWojsUnCO3y2tNoV1cb6hHY=
github.com/cosmos/go-bip39 v1.0.0/go.mod h1:RNJv0H/pOIVgxw6KS7QeX2a0Uo0aKUlfhZ4xuwvCdJw=
Expand Down Expand Up @@ -748,8 +749,8 @@ github.com/pascaldekloe/goe v0.1.0/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144T
github.com/paulbellamy/ratecounter v0.2.0/go.mod h1:Hfx1hDpSGoqxkVVpBi/IlYD7kChlfo5C6hzIHwPqfFE=
github.com/pborman/uuid v0.0.0-20170112150404-1b00554d8222/go.mod h1:VyrYX9gd7irzKovcSS6BIIEwPRkP2Wm2m9ufcdFSJ34=
github.com/pborman/uuid v1.2.0/go.mod h1:X/NO0urCmaxf9VXbdlT7C2Yzkj2IKimNn4k+gtPdI/k=
github.com/peggyjv/gravity-bridge/module v0.1.21 h1:5QBK682gf67vQoCpedeJYzTPPLWvZJtmqLxj7lWEJ+o=
github.com/peggyjv/gravity-bridge/module v0.1.21/go.mod h1:Key1D2z/KaJ5A206L3EQW6RWo4q8w+Jpl+p5HMm896g=
github.com/peggyjv/gravity-bridge/module v0.2.0 h1:1sAoILN/KKOSRlrVEu2RzAUYNm5NyNRbA0LnXJSNejY=
github.com/peggyjv/gravity-bridge/module v0.2.0/go.mod h1:gixjqIjdEb0CC0Kp4bLaJRoFSMG+irz3qU6gWwmNHik=
github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
github.com/pelletier/go-toml v1.9.3 h1:zeC5b1GviRUyKYd6OJPvBU/mcVDVoL1OhT17FCt5dSQ=
github.com/pelletier/go-toml v1.9.3/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
Expand Down Expand Up @@ -953,8 +954,8 @@ github.com/tendermint/tm-db v0.6.2/go.mod h1:GYtQ67SUvATOcoY8/+x6ylk8Qo02BQyLrAs
github.com/tendermint/tm-db v0.6.3/go.mod h1:lfA1dL9/Y/Y8wwyPp2NMLyn5P5Ptr/gvDFNWtrCWSf8=
github.com/tendermint/tm-db v0.6.4 h1:3N2jlnYQkXNQclQwd/eKV/NzlqPlfK21cpRRIx80XXQ=
github.com/tendermint/tm-db v0.6.4/go.mod h1:dptYhIpJ2M5kUuenLr+Yyf3zQOv1SgBZcl8/BmWlMBw=
github.com/tharsis/ethermint v0.4.2-0.20210831155846-516ffe2bf176 h1:DcRmsQNJFpbXF35HLsFgoyuuCFlSEWQ8R5/dGxn9aY0=
github.com/tharsis/ethermint v0.4.2-0.20210831155846-516ffe2bf176/go.mod h1:xN960Qi1siaDDIJjTTEwCF03vXD7KlRUG63YMMH8MpU=
github.com/tharsis/ethermint v0.4.2-0.20210902174739-5fac39db38ed h1:tJoRSbvnKkueMUuFOgfGK7svOjvnkqNP5STRgsTF8As=
github.com/tharsis/ethermint v0.4.2-0.20210902174739-5fac39db38ed/go.mod h1:Vvn8Ml0LJ3NsDGLnxzwHp9lnrr6j3r2DHutR10iDyME=
github.com/tidwall/gjson v1.6.7/go.mod h1:zeFuBCIqD4sN/gmqBzZ4j7Jd6UcA2Fc56x7QFsv+8fI=
github.com/tidwall/match v1.0.3/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
github.com/tidwall/pretty v1.0.2/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=
Expand Down
18 changes: 9 additions & 9 deletions gomod2nix.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -886,12 +886,12 @@
sha256 = "0nxbn0m7lr4dg0yrwnvlkfiyg3ndv8vdpssjx7b714nivpc6ar0y"

["github.com/cosmos/cosmos-sdk"]
sumVersion = "v0.43.0"
sumVersion = "v0.44.0"
["github.com/cosmos/cosmos-sdk".fetch]
type = "git"
url = "https://github.com/cosmos/cosmos-sdk"
rev = "3f8596c1955e40ef30e4abcd06f2237d132db3a9"
sha256 = "1fgi8xq4k7bislfchl8hz18iwf37ppkp5w471v5h4axq4xynpsmy"
rev = "ccc5245c3a1b2e5f1f584e9395fc571a1d19d989"
sha256 = "1vh48mwp8w21a3i71alwn56rlm8ip2na5mm7jpsj43d9d915phxp"

["github.com/cosmos/go-bip39"]
sumVersion = "v1.0.0"
Expand Down Expand Up @@ -2965,13 +2965,13 @@
sha256 = "0f146yjqwx2mr110kl8scjhqd08hys7vr5z0d0a3lskb6yy22gfg"

["github.com/peggyjv/gravity-bridge/module"]
sumVersion = "v0.1.21"
sumVersion = "v0.2.0"
relPath = "module"
["github.com/peggyjv/gravity-bridge/module".fetch]
type = "git"
url = "https://github.com/peggyjv/gravity-bridge"
rev = "755156abff254420eec2c4e54fb6e8d189556ee2"
sha256 = "1fjkq0jv42pq7fsah4chk2d1xkrdnkb9x52lkyagzlykw08ywcvr"
rev = "8af32db2883af08acd35bd76703eac39ab283eaa"
sha256 = "1rk5xca5zvk3srxsfa8482hbimf1mcdl5dksf2b5vgrmim4v3vn8"

["github.com/pelletier/go-toml"]
sumVersion = "v1.9.3"
Expand Down Expand Up @@ -3542,12 +3542,12 @@
sha256 = "1sgjf2vaq554ybc0cwkzn17cz2ibzph2rq0dgaw21c2hym09437x"

["github.com/tharsis/ethermint"]
sumVersion = "v0.4.2-0.20210831155846-516ffe2bf176"
sumVersion = "v0.4.2-0.20210902174739-5fac39db38ed"
["github.com/tharsis/ethermint".fetch]
type = "git"
url = "https://github.com/tharsis/ethermint"
rev = "516ffe2bf1765c62a6cdabf0384410933b431e65"
sha256 = "096rm0ibagl6ilhakpm7qb6g521m3jjif738pgzx6ih1mw0g5qi1"
rev = "5fac39db38ed302af421e56f321b979200332287"
sha256 = "1l64nimbmfxv06qn3b3356maan8npn0hlnqxd1iv4sqdganvkbra"

["github.com/tidwall/gjson"]
sumVersion = "v1.6.7"
Expand Down
22 changes: 18 additions & 4 deletions integration_tests/conftest.py
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Expand Up @@ -54,13 +54,27 @@ def __exit__(self, _1, _2, _3):
yield SuspendGuard()


@pytest.fixture(scope="session")
def cronos(tmp_path_factory):
path = tmp_path_factory.mktemp("cronos")
yield from setup_cronos(path, 26650)


@pytest.fixture(scope="session")
def geth(tmp_path_factory):
path = tmp_path_factory.mktemp("geth")
yield from setup_geth(path, 8545)


@pytest.fixture(scope="session", params=["cronos", "geth"])
def cluster(request, tmp_path_factory):
def cluster(request, cronos, geth):
"""
run on both cronos and geth
"""
provider = request.param
path = tmp_path_factory.mktemp(provider)
if provider == "cronos":
yield from setup_cronos(path, 26650)
yield cronos
elif provider == "geth":
yield from setup_geth(path, 8545)
yield geth
else:
raise NotImplementedError
7 changes: 7 additions & 0 deletions integration_tests/contracts/contracts/TestERC20A.sol
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Expand Up @@ -2,7 +2,14 @@ pragma solidity ^0.6.6;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract TestERC20A is ERC20 {
event __CronosNativeTransfer(address recipient, uint256 amount);
event __CronosEthereumTransfer(address recipient, uint256 amount, uint256 bridge_fee);

constructor() public ERC20("Bitcoin MAX", "MAX") {
_mint(msg.sender, 100000000000000000000000000);
}

function test_native_transfer(uint amount) public {
emit __CronosNativeTransfer(msg.sender, amount);
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Don't u have to burn the amount?

imo __CronosNativeTransfer is not clear for the operation. A transfer imply an origin and a destination.

Here it seems that you are either converting or minting?

It seems more that you are con

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@yihuang yihuang Sep 8, 2021 •
edited
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This is solely for testing the native call, the semantic of the call is to transfer mapped native token from contract address to recipient.
But because we can't setup token mapping in e2e testing right now, so the test itself is not complete yet (there's a TODO in that).

This is not the e2e testing for the complete bridge yet.

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so maybe __CronosCosmosConvert or __CronosCosmosMint?

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so maybe __CronosCosmosConvert or __CronosCosmosMint?

“Native” stands for native token, “Transfer” is also self explanatory I believe?

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@thomas-nguy thomas-nguy Sep 8, 2021 •
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is also self explanatory I believe?

I dont think so..
"Native" has barely any meaning without context. And using "Transfer" without specifying a sender and destination sounds weird.

If we can't find a proper short term to describe the operation, I would prefer to be very explicit and call the event
"__CronosSendFromContractToAccount(receiver, amount)" instead...

Mind that most smart contract developer won't have deep knowledge about the internal implementation, or cosmos implementation

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When I think about it again, can we say "From" is implied because the action is "Send" and we are executing a contract? It is the "Subject" (what token) and "To" that's unclear.

So

___CronosSendXToAccount // Account or Native Account? need to address in the terminology issue
___CronosSendXToEthereum // Send X (From the contract account) To Ethereum
___CronosSendXToIBCChannel
// Similar to Gravity Bridge `SendToCosmos` but be more explicit about the token type

p.s. Having "From" is no harm, my motive is if we think event name is too long then we can think about to trim it or not. I am okay to include it and be more explicit. (Is there any restricting on event name length?)

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@yihuang yihuang Sep 9, 2021 •
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When I think about it again, can we say "From" is implied because the action is "Send" and we are executing a contract? It is the "Subject" (what token) and "To" that's unclear.

So

___CronosSendXToAccount // Account or Native Account? need to address in the terminology issue
___CronosSendXToEthereum // Send X (From the contract account) To Ethereum
___CronosSendXToIBCChannel
// Similar to Gravity Bridge `SendToCosmos` but be more explicit about the token type

p.s. Having "From" is no harm, my motive is if we think event name is too long then we can think about to trim it or not. I am okay to include it and be more explicit. (Is there any restricting on event name length?)

Looks good to me.
And let's use NativeTokens for X for now? or Coins?

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Maybe 'X' can be omitted now?

__CronosSendToAccount
__CronosSendToEthereum
__CronosSendToIBCChannel

Even if we add NativeToken or Coins, it is not clear which coin is it. We need a proper term to designate the "Coin associated with the contract"

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Maybe 'X' can be omitted now?

__CronosSendToAccount
__CronosSendToEthereum
__CronosSendToIBCChannel

Even if we add NativeToken or Coins, it is not clear which coin is it. We need a proper term to designate the "Coin associated with the contract"

Looks good too, I suppose we'll have detailed documentation about them as part of the CRC20 standard.

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#62
opened issue and documented decision so far in it.

}
}
5 changes: 1 addition & 4 deletions integration_tests/cosmoscli.py
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Original file line number Diff line number Diff line change
Expand Up @@ -272,9 +272,6 @@ def transfer(self, from_, to, coins, generate_only=False, fees=None):
"-y",
"--generate-only" if generate_only else None,
home=self.data_dir,
keyring_backend="test",
chain_id=self.chain_id,
node=self.node_rpc,
fees=fees,
)
)
Expand Down Expand Up @@ -943,7 +940,7 @@ def send_to_ethereum(self, from_, receiver, coins, fee):
self.raw(
"tx",
"gravity",
"send-to-etheruem",
"send-to-ethereum",
receiver,
coins,
fee,
Expand Down
33 changes: 32 additions & 1 deletion integration_tests/test_basic.py
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@@ -1,7 +1,38 @@
from .utils import ADDRS
from pathlib import Path

from .utils import ADDRS, deploy_contract


def test_basic(cluster):
w3 = cluster.w3
assert w3.eth.chain_id == 777
assert w3.eth.get_balance(ADDRS["community"]) == 10000000000000000000000


def test_native_call(cronos):
"""
test contract native call on cronos network
- deploy test contract
- run native call, expect failure, becuase no native fund in contract
- send native tokens to contract account
- run again, expect success and check balance
"""
w3 = cronos.w3
contract = deploy_contract(
w3,
Path(__file__).parent
/ "contracts/artifacts/contracts/TestERC20A.sol/TestERC20A.json",
)

amount = 100

# the coinbase in web3 api is the same address as the validator account in
# cosmos api

# expect failure, because contract is not connected with native denom yet
# TODO complete the test after gov managed token mapping is implemented.
txhash = contract.functions.test_native_transfer(amount).transact(
{"from": w3.eth.coinbase}
)
receipt = w3.eth.wait_for_transaction_receipt(txhash)
assert receipt.status == 0, "should fail"
7 changes: 6 additions & 1 deletion integration_tests/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -259,14 +259,19 @@ def contract_address(addr, nonce):


def decode_bech32(addr):
previx, bz = bech32.bech32_decode(addr)
_, bz = bech32.bech32_decode(addr)
return HexBytes(bytes(bech32.convertbits(bz, 5, 8)))


def bech32_to_eth(addr):
return decode_bech32(addr).hex()


def eth_to_bech32(addr, prefix="ethm"):
bz = bech32.convertbits(HexBytes(addr), 8, 5)
return bech32.bech32_encode(prefix, bz)


class DelegateKeysSignMsg(ProtoEntity):
validator_address = Field("string", 1)
nonce = Field("uint64", 2)
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