/** Checks if two types are equal, not only mutually assignable. */
export type IfEquals<X, Y, P> = (<T>() => T extends X ? 1 : 2) extends <T>() => T extends Y ? 1 : 2 ? P : never;
/** Returns only mutable (non-readonly) properties of type. */
export type MutablePropsOf<T> = {
    [P in keyof T]: IfEquals<{
        [Q in P]: T[P];
    }, {
        -readonly [Q in P]: T[P];
    }, P>;
}[keyof T];
export type NoInfer<T> = [T][T extends unknown ? 0 : never];
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