Explore the use of purr's functions

[adamsardar]

I think that this would improve readability

[adamsardar]

Essentially, we could prepare functions separately to the main class and then use R's environment mechanism to hook them in. Would also allow for testing.

[adamsardar]

In fact, according to AdvancedR one can use S3 methods on R6 objects via the classname.

[adamsardar]

R6 allows this through use of $set on the class definition