This module an object for a collection of problems return by the rpmlib when trying to install or removing rpms from the system.
Create a new problems collection from transaction. Return undef if now problems has been found in the transaction.
Return the count of problems in the object
Reset internal index and set it to -1, see $deps-\\hasnext()>
Advance to next dependency in the set. Return FALSE if no further problem availlable, TRUE otherwise.
Return a format string about current problem in the set
Return True if the problem should be ignored
Print all error problems into the given handle, STDOUT if not specified.