Observe.kt.diff

/* Copyright 2020 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 */
   
- wordViewModel.allWords.observe(
-     this,
-     Observer { words ->
-         // Update the cached copy of the words in the adapter.
-         words?.let { adapter.submitList(it) }
-     }
- )
+ wordViewModel.allWords.observe(owner = this) { words ->
+     // Update the cached copy of the words in the adapter.
+     words.let { adapter.submitList(it) }
+ }