class Github::API

def _normalize_params_keys(params)
  case params
  when Hash
    params.keys.each do |k|
      params[k.to_s] = params.delete(k)
      _normalize_params_keys(params[k.to_s])
    end
  when Array
    params.map! { |el| el.to_s }
  else
    params
  end
  return params
end