> For the complete documentation index, see [llms.txt](https://docs.moneyonchain.com/main-rbtc-contract/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.moneyonchain.com/main-rbtc-contract/smart-contracts/abis-documentation/initializable.md).

# Initializable

* (Initializable.sol)

View Source: [zos-lib/contracts/Initializable.sol](https://github.com/money-on-chain/main-RBTC-contract/blob/master-gitbook/zos-lib/contracts/Initializable.sol)

**↘ Derived Contracts:** [**Governed**](/main-rbtc-contract/smart-contracts/abis-documentation/governed.md)**,** [**MoCBase**](https://github.com/money-on-chain/main-RBTC-contract/blob/master-gitbook/docs/abis/MoCBase.md)**,** [**MoCConnector**](/main-rbtc-contract/smart-contracts/abis-documentation/mocconnector.md)**,** [**MoCHelperLibHarness**](https://github.com/money-on-chain/main-RBTC-contract/blob/master-gitbook/docs/abis/MoCHelperLibHarness.md)**,** [**ReentrancyGuard**](https://github.com/money-on-chain/main-RBTC-contract/blob/master-gitbook/docs/abis/ReentrancyGuard.md)

**Initializable** - version: 0.1.12

Helper contract to support initializer functions. To use it, replace the constructor with a function that has the `initializer` modifier. WARNING: Unlike constructors, initializer functions must be manually invoked. This applies both to deploying an Initializable contract, as well as extending an Initializable contract via inheritance. WARNING: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or ensure that all initializers are idempotent, because this is not dealt with automatically as with constructors.

## Contract Members

**Constants & Variables**

```js
bool private initialized;
```

***

```js
bool private initializing;
```

***

```js
uint256[50] private ______gap;
```

***

## Modifiers

* [initializer](#initializer)

### initializer

Modifier to use in the initializer function of a contract.

```js
modifier initializer() internal
```

**Arguments**

## Functions

* [isConstructor()](#isconstructor)

### isConstructor

Returns true if and only if the function is running in the constructor

```js
function isConstructor() private view
returns(bool)
```

**Arguments**