TS函数重载类型推断
当从函数重载推断类型时，只会从最后一个函数签名中推断，比如：
typescript
interface EventBus {
(event: 'refresh', type: string):void;
(event: 'query', data: number):void;
}
type Inferred = Parameters<EventBus> extends [infer K, ...infer U] ? U : never;
// type Inferred === [number]当从多个调用签名中推断类型时（比如函数重载类型），总是会从最后一个签名中推断（因为是最有可能包含所有情况的签名）。这里没有办法展示出重载的参数类型数组。
When inferring from a type with multiple call signatures (such as the type of an overloaded function), inferences are made from the last signature (which, presumably, is the most permissive catch-all case). It is not possible to perform overload resolution based on a list of argument types.
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