class Typhoeus::ParamProcessor

def traverse_params_hash(hash, result = nil, current_key = nil)
  result ||= { :files => [], :params => [] }
  hash.keys.sort { |a, b| a.to_s <=> b.to_s }.collect do |key|
    new_key = (current_key ? "#{current_key}[#{key}]" : key).to_s
    current_value = hash[key]
    process_value current_value, :result => result, :new_key => new_key
  end
  result
end