You're seeing just the function
known_grammatical_cases, go back to Cldr.Unit module for more information.
Returns a list of the known grammatical cases.
A grammatical case can be provided as an option to
Cldr.Unit.to_string/2 in order to localise a unit
appropriate to the context in which it is used.
iex> Cldr.Unit.known_grammatical_cases [ :ablative, :accusative, :comitative, :dative, :ergative, :genitive, :instrumental, :locative, :localtivecopulative, :nominative, :oblique, :partitive, :prepositional, :sociative, :vocative ]