def normalize!(params)
      case params
      when Hash
        params.keys.each do |k|
          params[k.to_s] = params.delete(k)
          normalize!(params[k.to_s])
        end
      when Array
        params.map! do |el|
          normalize!(el)
        end
      end
      params
    end
def normalize!(params)
      case params
      when Hash
        params.keys.each do |k|
          params[k.to_s] = params.delete(k)
          normalize!(params[k.to_s])
        end
      when Array
        params.map! do |el|
          normalize!(el)
        end
      end
      params
    end
Turns any keys from nested hashes including nested arrays into strings