Hey guys! I'm trying to enable typescript support for my ERC1155 Upgradable via @typechain/truffle-v5. It is a bit of an overhead since there are known limitations, like migrations scripts need to be transpiled to js for them to run, but hey, some1 needs to do it. 
During this, after following this example of the guys from typechain I ran into a type mismatch in the migrations. Code example below.
Code to reproduce
import { deployProxy } from '@openzeppelin/truffle-upgrades';
module.exports = async function (deployer) {
const Pass = artifacts.require('Loyalty');
const instace = await deployProxy(Pass, ["0xesadas", "0xasdasd"], { deployer});
console.log('Deployed', instace.address);
} as Truffle.Migration;
export { }
Environment
Package.json
{
"scripts": {
"generate-types": "npx typechain --target=truffle-v5 'build/contracts/*.json'",
"postinstall": "npx truffle compile && npm run generate-types",
"migrate": "tsc -p ./tsconfig.migrate.json --outDir ./migrations && truffle migrate",
"typecheck": "tsc --noEmit",
"test" : "truffle test",
"compile" : "truffle compile"
},
"devDependencies": {
"@openzeppelin/contracts-upgradeable": "^4.2.0",
"@openzeppelin/truffle-upgrades": "^1.8.0",
"@typechain/truffle-v5": "^5.0.0",
"@types/chai": "^4.2.21",
"@types/mocha": "^9.0.0",
"@types/node": "^16.4.13",
"solc": "^0.8.6",
"truffle": "^5.4.3",
"ts-node": "^10.1.0",
"typechain": "^5.1.2",
"typescript": "^4.3.5"
}
}
Error
The error is on line 5 of the code snippet, where:
Argument of type 'LoyaltyContract' is not assignable to parameter of type 'ContractClass'.
Type 'LoyaltyContract' is missing the following properties from type 'ContractClass': setProvider, defaults, bytecode, currentProvider, class_defaults
Contract:
*contract Loyalty is ERC1155Upgradeable, OwnableUpgradeable * and *has a valid initializer* .