nest-example-usage.rb

Person.key(:custom) # previous version
Person.key[:custom] # new version

# At this point it doesn't seem ground breaking, but when we want to do
# operations on it, the change will be more apparent.

# Code like this:
Person.db.sadd Person.key(:my_custom_set), 1

# will be much cleaner, and now look like:
Person.key[:my_custom_set].sadd(1)