Describe the 'never' type in TypeScript

Instruction: Explain the 'never' type and its usage in TypeScript.

Context: This question tests the candidate's understanding of the 'never' type in TypeScript and their ability to explain its use in representing values that never occur, useful in type guarding and exhaustive checks.

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never represents a type with no possible values. It can describe a function that does not complete normally, such as one that always throws, or the remaining type after every member of a union has been eliminated. It is different from void, which describes a function whose result is not used and which may return normally.

type Outcome = | { kind: "success"; value:...

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