Combines all the results in the given sequence into a single result. If all the results in the sequence are Successes, the end result will be a Success containing a sequence of their values and all their warnings (both in the original order of the sequence). Otherwise, a Failure will be returned that contains all errors and all warnings contained in any of the results (again maintaing the order of the original sequence).

Apply the function f to the elements of xs until it returns a Failure or until the end of the list is reached. If a Failure was returned, the result is also a failure with the same error messages and all the warnings that have been produced so far. If all results are Successes, the end result is a Success containing a list of the produced values and all the warnings produced. Note that if a Failure is produced, f will not be called on any later elements, so no warnings or errors that would be produced by those elements, will appear in the result.