assertNotNullish()function

assertNotNullish(value: Nullish<T>, caller: AnyCaller = assertNotNullish): asserts value is T

Param	Type
`value`	`Nullish<T>`	The value to assert. required
`caller`	`AnyCaller`	Function used to attribute a thrown error to the calling site. Defaults to `assertNotNullish`

Return
`asserts value is T`	Nothing; narrows `value` to `T`.

Throws
`unknown`	`RequiredError` if `value` is `null` or `undefined`.

Assert that a value is not nullish (not null and not undefined).