predicate_for_validation_context

# File activemodel/lib/active_model/validations.rb, line 296
        def predicate_for_validation_context(context)
          context = context.is_a?(Array) ? context.sort : Array(context)

          @@predicates_for_validation_contexts[context] ||= -> (model) do
            if model.validation_context.is_a?(Array)
              model.validation_context.any? { |model_context| context.include?(model_context) }
            else
              context.include?(model.validation_context)
            end
          end
        end