Merge pull request #47 from rj-au/patch-2

Fix type for flush promise return value: Boolean -> boolean

Author: nblumhardt

index.d.ts

@@ -12,7 +12,7 @@ declare namespace PinoSeq {
   }
 
   function createStream(config: PinoSeq.SeqConfig): Writable & {
-    flush: () => Promise<Boolean>;
+    flush: () => Promise<boolean>;
   };
 }