-Note that (as of Aug 2006) this is only supported by some of the
-newest processor modules, and that, even if supported, a failure
-status is an entirely optional field that is only set for specific
-kinds of failures.
+Note that not all processor modules support this, and that if supported,
+it may not be set for all declines.
+
+=head2 partial_auth_amount()
+
+Amount of the partial authorization, if the processor supports them and the
+partial_auth flag was passed to indicate they should be processed.