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You can use type guards for something similar: https://www.typescriptlang.org/docs/handbook/advanced-types.html#type-guards-and-differentiating-types https://ww

• 323 4y ago
  Keyword similar. I use type guards for other things (like typing JSON responses), but they can't solve this particular problem.
• brundolf 4y ago
  What they were getting at is that you can't observe T itself, only values passed in as type T