# File lib/apipie_bindings/action.rb, line 77
    def missing_params(master, slave)
      missing = []
      master.each do |required_param|
        if required_param.is_a?(Hash)
          key = required_param.keys.first
          slave_hash = slave.select { |p| p.is_a?(Hash) && p[key] }
          missing << missing_params(required_param[key], slave_hash.first ? slave_hash.first[key] : [])
        else
          missing << required_param unless slave.include?(required_param)
        end
      end
      missing.flatten.sort
    end