model_name_from_record_or_class

# File activemodel/lib/active_model/naming.rb, line 342
    def self.model_name_from_record_or_class(record_or_class) # :nodoc:
      if record_or_class.respond_to?(:to_model)
        record_or_class.to_model.model_name
      else
        record_or_class.model_name
      end
    end