Returns the contained value if Some, otherwise returns the provided value
'a -> CancellableTask<'a option> -> CancellableTask<'a>Returns the contained value if Some, otherwise evaluates the given function and returns the result.
(unit -> 'a) -> CancellableTask<'a option> -> CancellableTask<'a>Wraps the provided value in an CancellableTask<'a option>
'a -> CancellableTask<'a option>