class TencentCloud::Common::AbstractModel

def self.format_params(prefix = nil, params)
  d = {}
  case params
  when Hash
    params.each do |k, v|
      key = prefix ? "#{prefix}.#{k}" : k.to_s
      d.update(format_params(key, v))
    end
  when Array
    params.each_with_index do |v, i|
      key = prefix ? "#{prefix}.#{i}" : i.to_s
      d.update(format_params(key, v))
    end
  else
    d[prefix] = params
  end
  d
end