The 'rollup' flag indicates whether the reported time is the rolled up time for
the block, or the elapsed time from the previous profiling point.
-=head1 COMPATABILITY METHODS
+=head1 COMPATIBILITY METHODS
Some components might expect the stats object to be a regular Tree::Simple object.
-We've added some compatability methods to handle this scenario:
+We've added some compatibility methods to handle this scenario:
=head2 accept