Yes! Warp will try to find the path to node_modules and pass the correct flags to the solc compiler. If your openzeppelin or other library contracts are located somewhere else you can the base-path and include-path flags to make sure your imports work.

victorforissier.eth

### *From Newton AI*
*OpenZeppelin is a collection of reusable, secure smart contract libraries for Ethereum. It provides a set of Solidity contracts that implement common contract patterns and functions, such as ERC20 token contracts and contracts for managing and securing user accounts. By using OpenZeppelin libraries in your contracts, you can benefit from the security and functionality provided by these pre-written contracts, without having to reimplement them yourself. When transpiling your contracts, the transpiler will include the code from any imported libraries, such as OpenZeppelin, in the final transpiled output.*

Is it possible to transpile contracts that use openzeppelin libraries?

Hey folks, do you know how I could read a felt* from ap?

I want to do something like this:

```rs
    let (hello : felt*) = alloc();
    tempvar world : felt* = hello;
    let world_like : felt* = [ap-1];
```

when I do tempvar world = hello, I ensure I add hello (the pointer) to [ap] and then I increase ap so world_like = [ap-1] should be the same thing than world

But I get this error:

```
Cannot assign an expression of type 'felt' to a reference of type 'felt*'.
    let world_like : felt* = [ap-1];
```

When doing a similar code:

```rust
        let (func_pc: felt*) = get_label_location(storage_var);
        _prepare_call(pedersen_ptr, range_check_ptr, len_inputs, inputs + len_inputs);
        call abs ap[11 - 6 * 2];
```

I get ```
Cannot apply subscript-operator to non-pointer, non-tuple type 'felt'.
        call abs ap[11 - 6 * 2];  // removing alloc_locals by calling ap[11-6*2] ?
```

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

how I could read a felt* from ap in Cairo lang?

There are a bunch of questions about key storage in a new "Account Abstraction" paradigm.
1. Can I recover my key if I lose it?
2. Can I have a key-less wallet?
3. Can I easily create new wallets like in Metamask "Add Account" with only 1 seed phrase?
---

This question is participating in [Newton Bounties | Incentivized Test Program](https://www.notion.so/Newton-Bounties-Incentivized-Test-Program-94322ad48e7d40a3adcf36f6b26174cd) Every verified valid question gets $10 USDC (mainnet)

How will work an account abstaction wallet with the key?

I am trying to get a better understanding of what the difference is between these two and when to use which


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/488)_

Cairo: What is the difference between let and tempvar?

Hello, I deployed my contract using Argent X.
I click on "Developer settings" and then "Smart contract developement". I declare and deploy the contract.
Also used [this guide](https://www.newton.so/view/63a1890e581919f84b2a4c51) and it helped me.

But the contract is not automatically verified on starkscan or voyager. What should I do to get verified?

How can I verify a contract on starkscan or voyager after deploying the contract

Hey, I'm curious if uint256 variables are safe to use? They are using 2x128 bits, while a native felt uses only 252 bits. 

Can anyone explain?

Is uint256 math operators like uint256_le safe? Why do I need to use uint256_check?

Hey,
As each storage value is by default initialized to 0, does writing it to zero actually do something? Does it use storage in layer 1 with value 0? Or does it just do nothing?
Should I check that the value I want to write is different than 0 before writing it otherwise I will waste storage?

The same idea: does writing a storage value to 0 free storage on l1

Does writing it to zero actually do something?

1. What’s the difference between AA (Abstract Account) and EOA (Externally Owned Account)?

2. What is an abstract account? Where is the account address derived from? Does the account address also come from the mnemonic and the private key?

3. What is multi-call? What will it bring to UX?

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Is it possible to transpile contracts that use openzeppelin libraries?

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