release<T> method
Null safety
Releases the result of a captured future.
Converts the Result value of the given future
to a value or error
completion of the returned future.
If future
completes with an error, the returned future completes with
the same error.
Implementation
static Future<T> release<T>(Future<Result<T>> future) =>
future.then<T>((result) => result.asFuture);