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