Function before

before(fn?: HookFn, options?: HookOptions): void
This function creates a hook that runs before executing a suite.
```
describe('tests', async () => {
  before(() => console.log('about to run some test'));
  it('is a subtest', () => {
    assert.ok('some relevant assertion here');
  });
});
```
Parameters
- Optionalfn: HookFn
  The hook function. If the hook uses callbacks, the callback function is passed as the second argument.
- Optionaloptions: HookOptions
  Configuration options for the hook.
Returns void
Since
v18.8.0, v16.18.0