这段代码与打字稿混淆了什么？这里有多少个参数？是actionType和有效负载参数？

Question

export function createActionPayload<TypeAction, TypePayload>(  actionType: TypeAction): (payload: TypePayload) => ActionsWithPayload<TypeAction, TypePayload> {
      return (p: TypePayload): ActionsWithPayload<TypeAction, TypePayload> => {
        return {
          payload: p,
          type: actionType
        };
      };
    }

这是发送动作的功能