Fix compilation settings.

tsconfig.json

@@ -56,5 +56,9 @@
     /* Experimental Options */
     "experimentalDecorators": true,           /* Enables experimental support for ES7 decorators. */
     "emitDecoratorMetadata": true             /* Enables experimental support for emitting type metadata for decorators. */
-  }
+  },
+  "exclude": [
+    "src/**/*.test.ts",
+    "dist/**/*"
+  ]
 }
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