HandleError is a method to invoke when a non-user facing piece of code cannot return an error and needs to indicate it has been ignored.

IsAll reports whether any error in err's tree matches all target in targets.

IsAny reports whether any error in err's tree matches any target in targets.

Mark returns an error with the supplied errors as marks.

Deprecated: Use errors.Join instead since go1.20.

Must panics if err != nil.

ErrorHandlers is a list of functions which will be invoked when a nonreturnable error occurs.