Better error message if key is not specified in ATTRIBUTE_TYPES (#1762)
Better error message if key is not specified in ATTRIBUTE_TYPES (#1762)

[key] → fetch(key)

to provide better error description if something goes wrong.
Originally, we get "NoMethodError: undefined method
`associative?' for nil:NilClass"
thoughtbot/administrate,thoughtbot/administrate,thoughtbot/administrate,thoughtbot/administrate