#
# Comparison is made with the formula:
#
-# a.concern_rank + a.booster_rank <=> b.concern_rank + b.booster_ran
+# ~~~nitish
+# a.concern_rank + a.booster_rank <=> b.concern_rank + b.booster_ran
+# ~~~
#
# If both `a` and `b` have the same ranking,
# ordering is based on lexicographic comparison of `a.name` and `b.name`