There's more than one way to implement DRY. Lots of times there is no superclassing to capture commonality, but there are functions that can be written only onc

There's more than one way to implement DRY. Lots of times there is no superclassing to capture commonality, but there are functions that can be written only once. Organizing a set of complex algo steps that share some commonality and have some differences is just hard sometimes.