Function spoiler

spoiler(text: string, mode?: "MarkdownV2" | "HTML"): string
Wraps text with spoiler concealment formatting.
Parameters
- text: string
  Content to conceal behind spoiler.
- mode: "MarkdownV2" | "HTML" = "HTML"
  Target parse mode ("HTML" or "MarkdownV2"). Default: "HTML".
Returns string
Formatted spoiler string.