进行类型导出重构

type.ts

@@ -19,7 +19,7 @@ export type FileInfo = {
 };
 
 export declare class Jensen {
-    constructor(log: typeof Logger)
+    constructor(log?: typeof Logger)
     onconnect: Function;
     onmessage: (data: any) => void | null;
     connect: () => Promise<void>;