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                   Rate obj_named_param named_pram obj_pos_param obj_i
+nternal param
obj_named_param 392157/s              --       -14%          -45%     
+    -48%  -56%
...
obj_pos_param   701262/s             81%        59%            --     
+     -6%  -19%
obj_internal    742942/s             92%        69%            6%     
+      --  -14%
param           860585/s            122%        96%           23%     
+     16%    --

 param - sub by position
 named_param - sub by name
 obj_internal - the values we use are stored inside the object.
 obj_pos_param - obj passing values by position
 obj_named_param - obj passed by name

#!/usr/bin/perl
package Blah;
...
    obj_named_param => '$obj->obj_named_param(arg1 => 1,arg2 => 1)',
})