> For the complete documentation index, see [llms.txt](https://turtleshell.gitbook.io/introduction/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://turtleshell.gitbook.io/introduction/technical-reference/turtleshell-core/iturtleshellfirewallincreaser.md).

# ITurtleShellFirewallIncreaser

## **ITurtleShellFirewallIncreaser Interface**

The **`ITurtleShellFirewallIncreaser`** is an extension interface for the **`ITurtleShellFirewall`** contract. It offers methods for automatically increasing and decreasing the parameters for a given protocol. This document describes the methods provided by the interface and provides examples of how to integrate these into your contracts.

This interface was written in Solidity, a statically-typed programming language used for Ethereum smart contracts.

### **Contract Methods**

***

#### **`decreaseParameter(uint256 amount)`**

This function decreases the security parameter for the calling protocol by a given amount.

The function will return **`true`** if the operation was successful.

```solidity

contract MyContract {
    ITurtleShellFirewallIncreaser firewall;

    function decreaseParam(uint256 amount) public {
        bool status = firewall.decreaseParameter(amount);
    }
}

```

***

#### **`increaseParameter(uint256 amount)`**

This function increases the security parameter for the calling protocol by a given amount.

The function will return **`true`** if the operation was successful.

```solidity

contract MyContract {
    ITurtleShellFirewallIncreaser firewall;

    function increaseParam(uint256 amount) public {
        bool status = firewall.increaseParameter(amount);
    }
}

```

***

As with the **`ITurtleShellFirewall`** interface, to use this interface you should have the contract address of the deployed **`ITurtleShellFirewallIncreaser`** implementation. You should instantiate the **`ITurtleShellFirewallIncreaser`** with this address:

```solidity

ITurtleShellFirewallIncreaser firewall = ITurtleShellFirewallIncreaser(deployed_firewall_address_here);

```

The **`ITurtleShellFirewallIncreaser`** interface extends the **`ITurtleShellFirewall`** interface. Therefore, all methods defined in **`ITurtleShellFirewall`** are also available in **`ITurtleShellFirewallIncreaser`**. The examples provided in the previous **`ITurtleShellFirewall`** interface documentation can be used with an **`ITurtleShellFirewallIncreaser`** instance.

Remember, before you can call **`increaseParameter`** or **`decreaseParameter`**, the security parameter must be set using the **`setParameter`** function. This initial parameter acts as a baseline that the **`increaseParameter`** and **`decreaseParameter`** functions will increase or decrease, respectively.