message: supported custom platform
diff: @@ -10,7 +10,11 @@ export const ANDROID = Platform.ANDROID;
  export const IOS = Platform.IOS;
  export const VKCOM = Platform.VKCOM;
  -export type PlatformType = Platform.ANDROID | Platform.IOS | Platform.VKCOM;
  +export type PlatformType =
  + | Platform.ANDROID
  + | Platform.IOS
  + | Platform.VKCOM
  + | string;
  export function platform(browserInfo?: BrowserInfo): PlatformType {
  if (!browserInfo) {
  