Function isFailure

isFailure<E>(resultOrFailure: unknown): resultOrFailure is Failure<E>
Checks if a value is a Failure or not. A Failure is a value that was created with the Fail function.
Type Parameters
- E
Parameters
- resultOrFailure: unknown
  value to check if it is a Fail'ure nor not.
Returns resultOrFailure is Failure<E>