Cannot serialize TransactionRequest

[animosi]

`
const contract = new ethers.ContractFactory(abi, bytecode);
const unsignedTx = contract.getDeployTransaction(args, overrides);

return ethers.utils.serializeTransaction(unsignedTx);
`
I successfully build a unsigned transaction to deploy a smart contract, signed it with a wallet, and deployed to rinkeby.

My issue is, serializing/deserializing the unsigned transaction. I get an error with the code above.

Argument of type 'TransactionRequest' is not assignable to parameter of type 'UnsignedTransaction'

Ethers.js docs show the method getDeployTransaction returns a unsignedTransaction, but typescript says otherwise.

i can typecast it , but am unsure if this is a safe work around.

PS. love ether.js