# Assert
> Standard library assertion utility tools.
## Usage
```javascript
var tools = require( '@stdlib/assert/tools' );
```
#### tools
Standard library assertion utility tools.
```javascript
var o = tools;
// returns {...}
```
## Examples
```javascript
var objectKeys = require( '@stdlib/utils/keys' );
var tools = require( '@stdlib/assert/tools' );
console.log( objectKeys( tools ) );
```