code: @Override
      public java.util.concurrent.Future<GetItemResult> getItemAsync(String tableName, java.util.Map<String, AttributeValue> key) {
  
          return getItemAsync(new GetItemRequest().withTableName(tableName).withKey(key));
      }
docs: Simplified method form for invoking the GetItem operation.
  
  @see #getItemAsync(GetItemRequest)