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interface Interface {
field: number;
}
const defaultValue: Interface = { field: 1 };
declare function assign<T, U>(target: T, source: U): T & U;
// Displayed type: Interface & { field: number }
// Underlying type: Something else...
const data1 = assign(defaultValue, Date.now() > 3 ? { field: 2 } : {});
type ExtractRawComponent<T> = T extends { __raw: infer C } ? [L1: T, L2: C] : [R1: T];
type t1 = ExtractRawComponent<typeof data1>;
// ???
type Explode<T> = T extends { x: infer A } ? [A] : 'X';
// 'X' | [unknown] -- why?
type e1 = Explode<typeof data1>;
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