chore: removed extra export in docs/examples

Author: dreamorosi

docs/core/metrics.md

@@ -277,7 +277,7 @@ You can add default dimensions to your metrics by passing them as parameters in
         }
     }
 
-    export const handlerClass = new Lambda();
+    const handlerClass = new Lambda();
     export const handler = handlerClass.handler.bind(handlerClass); // (1)
     ```
 
@@ -375,7 +375,7 @@ The `logMetrics` decorator of the metrics utility can be used when your Lambda h
         }
     }
 
-    export const handlerClass = new Lambda();
+    const handlerClass = new Lambda();
     export const handler = handlerClass.handler.bind(handlerClass); // (1)
     ```
 
@@ -639,7 +639,7 @@ CloudWatch EMF uses the same dimensions across all your metrics. Use `singleMetr
         }
     }
 
-    export const handlerClass = new Lambda();
+    const handlerClass = new Lambda();
     export const handler = handlerClass.handler.bind(handlerClass); // (1)
     ```
 

packages/metrics/src/Metrics.ts

@@ -58,7 +58,7 @@ const DEFAULT_NAMESPACE = 'default_namespace';
  *   }
  * }
  *
- * export const handlerClass = new MyFunctionWithDecorator();
+ * const handlerClass = new MyFunctionWithDecorator();
  * export const handler = handlerClass.handler.bind(handlerClass);
  * ```
  *
@@ -221,7 +221,7 @@ class Metrics extends Utility implements MetricsInterface {
    *   }
    * }
    *
-   * export const handlerClass = new MyFunctionWithDecorator();
+   * const handlerClass = new MyFunctionWithDecorator();
    * export const handler = handlerClass.handler.bind(handlerClass);
    * ```
    *

packages/metrics/tests/e2e/basicFeatures.decorator.test.functionCode.ts

@@ -42,5 +42,5 @@ class Lambda implements LambdaInterface {
   }
 }
 
-export const handlerClass = new Lambda();
+const handlerClass = new Lambda();
 export const handler = handlerClass.handler.bind(handlerClass);