def concat(other)
      other.rule_sets.each do |context_name, rule_set|
        add_rules_to_context(context_name, rule_set)
      end

      self
    end
def concat(other)
      other.rule_sets.each do |context_name, rule_set|
        add_rules_to_context(context_name, rule_set)
      end

      self
    end
Assimilate all rules contained in +other+ into the receiver

 @param [ContextualRuleSet] other
   the ContextualRuleSet whose rules are to be assimilated

 @return [self]

 @api private