blacklist import export

lib/Blacklist.ts

@@ -43,6 +43,14 @@ class Blacklist {
 
     return true;
   }
+
+  public export_blacklist (): Signature[] {
+    return this._signatures;
+  }
+
+  public import_blacklist (data: Signature[]): void {
+    this._signatures.push (...data);
+  }
 }
 
 const bl = (new Blacklist);