Function isNil

isNil(value: unknown): value is null | undefined
It will determine whether the provided value is null/undefined or not.
Parameters
- value: unknown
Returns value is null | undefined
Since
1.0.0
Example
```
isNull(null); // => true
```
Example
```
isNil(undefined); // => true
```
Example
```
isNil(void 0); // => true
```
- Defined in is-nil.ts:13