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add decode multicall test
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‎Tests/web3swiftTests/localTests/ABIDecoderTests.swift

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//
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// ABIDecoderTests.swift
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//
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//
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// Created by liugang zhang on 2023/3/16.
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//
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import Foundation
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import Web3Core
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import XCTest
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import BigInt
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@testable import web3swift
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final class ABIDecoderTests: XCTestCase {
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func testDecodeMulticall() throws {
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// get result from http
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//
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// let requests = tokenAddress.map { address -> AnyObject in
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// let callData = erc20_balanceof.encodeParameters([account as NSString])
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// return [address, callData as Any] as AnyObject
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// } as AnyObject
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//
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// let read = contract.createReadOperation(
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// "tryAggregate",
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// parameters: [false, requests] as [AnyObject]
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// )
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// let results = try await read?.callContractMethod()
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let data = Data(hex: "0x00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000004fe6dab4abca350650")
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let contract = try EthereumContract(Self.multiCall2, at: nil)
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let erc20_balanceof = try EthereumContract(Web3.Utils.erc20ABI).methods["balanceOf"]!.first!
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guard let decodedData = contract.decodeReturnData("tryAggregate", data: data) else {
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throw Web3Error.processingError(desc: "Can not decode returned parameters")
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}
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guard let returnData = decodedData["returnData"] as? Array<Array<Any>> else {
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throw Web3Error.dataError
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}
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var resultArray = [BigUInt]()
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for i in 0..<2 {
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guard let data = returnData[i][1] as? Data,
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let balance = erc20_balanceof.decodeReturnData(data)["0"] as? BigUInt else {
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resultArray.append(0)
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continue
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}
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resultArray.append(balance)
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}
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print(resultArray)
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XCTAssert(resultArray.count == 2)
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}
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public static let multiCall2 = """
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[
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{
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"inputs": [
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{
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"components": [
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{
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"internalType": "address",
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"name": "target",
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"type": "address"
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},
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{
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"internalType": "bytes",
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"name": "callData",
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"type": "bytes"
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}
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],
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"internalType": "struct Multicall2.Call[]",
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"name": "calls",
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"type": "tuple[]"
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}
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],
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"name": "aggregate",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "blockNumber",
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"type": "uint256"
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},
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{
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"internalType": "bytes[]",
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"name": "returnData",
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"type": "bytes[]"
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}
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],
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"payable": false,
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [
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{
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"components": [
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{
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"internalType": "address",
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"name": "target",
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"type": "address"
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},
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{
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"internalType": "bytes",
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"name": "callData",
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"type": "bytes"
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}
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],
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"internalType": "struct Multicall2.Call[]",
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"name": "calls",
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"type": "tuple[]"
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}
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],
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"name": "blockAndAggregate",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "blockNumber",
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"type": "uint256"
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},
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{
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"internalType": "bytes32",
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"name": "blockHash",
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"type": "bytes32"
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},
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{
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"components": [
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{
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"internalType": "bool",
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"name": "success",
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"type": "bool"
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},
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{
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"internalType": "bytes",
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"name": "returnData",
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"type": "bytes"
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}
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],
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"internalType": "struct Multicall2.Result[]",
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"name": "returnData",
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"type": "tuple[]"
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}
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],
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "uint256",
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"name": "blockNumber",
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"type": "uint256"
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}
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],
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"name": "getBlockHash",
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"outputs": [
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{
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"internalType": "bytes32",
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"name": "blockHash",
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"type": "bytes32"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "getBlockNumber",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "blockNumber",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "getCurrentBlockCoinbase",
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"outputs": [
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{
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"internalType": "address",
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"name": "coinbase",
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"type": "address"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "getCurrentBlockDifficulty",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "difficulty",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "getCurrentBlockGasLimit",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "gaslimit",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "getCurrentBlockTimestamp",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "timestamp",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "address",
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"name": "addr",
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"type": "address"
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}
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],
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"name": "getEthBalance",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "balance",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "getLastBlockHash",
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"outputs": [
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{
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"internalType": "bytes32",
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"name": "blockHash",
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"type": "bytes32"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "bool",
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"name": "requireSuccess",
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"type": "bool"
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},
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{
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"components": [
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{
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"internalType": "address",
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"name": "target",
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"type": "address"
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},
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{
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"internalType": "bytes",
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"name": "callData",
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"type": "bytes"
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}
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],
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"internalType": "struct Multicall2.Call[]",
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"name": "calls",
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"type": "tuple[]"
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}
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],
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"name": "tryAggregate",
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"outputs": [
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{
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"components": [
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{
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"internalType": "bool",
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"name": "success",
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"type": "bool"
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},
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{
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"internalType": "bytes",
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"name": "returnData",
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"type": "bytes"
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}
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],
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"internalType": "struct Multicall2.Result[]",
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"name": "returnData",
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"type": "tuple[]"
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}
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],
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"payable": false,
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "bool",
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"name": "requireSuccess",
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"type": "bool"
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},
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{
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"components": [
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{
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"internalType": "address",
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"name": "target",
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"type": "address"
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},
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{
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"internalType": "bytes",
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"name": "callData",
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"type": "bytes"
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}
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],
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"internalType": "struct Multicall2.Call[]",
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"name": "calls",
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"type": "tuple[]"
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}
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],
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"name": "tryBlockAndAggregate",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "blockNumber",
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"type": "uint256"
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},
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{
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"internalType": "bytes32",
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"name": "blockHash",
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"type": "bytes32"
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},
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{
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"components": [
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{
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"internalType": "bool",
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"name": "success",
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"type": "bool"
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},
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{
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"internalType": "bytes",
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"name": "returnData",
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"type": "bytes"
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}
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],
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"internalType": "struct Multicall2.Result[]",
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"name": "returnData",
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"type": "tuple[]"
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}
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],
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"stateMutability": "nonpayable",
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"type": "function"
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}
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]
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"""
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}

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