I'm assuming you're using Client.send_transaction, this method however expects a prepared InvokeFunction and doesn't accept any other arguments. You can try using Contract api https://starknetpy.readthedocs.io/en/latest/quickstart.html#using-contract to easily create and invoke transactions.

_This answer was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

Newton

Hey everyone!

I am trying to unpack nested tuples into felts t pass as calldata to a contract via a proxy call.

await signer.send_transaction(admin, proxy_contract.contract_address, 'createSyntheticAsset', [
       *test_synthetic_asset.to_tuple() 
    ])

But this fails with this error: TypeError: '<' not supported between instances of 'tuple' and 'int' 

does anyone have an Idea about this?

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

A TypeError while unpacking nested tuples into felts

How do I get the function selector or the hash from the function name in Cairo?


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/627)_

Cairo: Getting function selector

Can you help how to change the code so that it outputs 400 as well?

```
// The following code outputs the numbers 100, 200, 300.
// 1. Click on "Run" to see the output.
// 2. Change it to output 400 as well.

// Use the output builtin.
%builtins output

// Import the serialize_word() function.
from starkware.cairo.common.serialize import serialize_word

func main{output_ptr: felt*}() {
// Output 100 by calling serialize_word.
serialize_word(100);
// Output 200.
serialize_word(200);
// Output 300.
serialize_word(300);
// Return.
return ();
}
```

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Ahoy Caironauts,

  How can I define two functions with the same name but not the same arguments, e.g, 

- `func test()`
- `func test(param: Uint256)`

It is possible in Solidity and I'm trying to find the Cairo equivalent.

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How can I define two functions with the same name but not the same arguments?

When deploying contract2 from contract1 in Cairo, I need to get the CLASS_HASH. How do I achieve this?


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/554)_

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A TypeError while unpacking nested tuples into felts

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