Fix import order with isort tool.

tools/telemetry/telemetry/value/merge_values.py

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from telemetry.value import failure
 from telemetry.value import skip
 
+
 def MergeLikeValuesFromSamePage(all_values):
   """Merges values that measure the same thing on the same page.
 
   A page may end up being measured multiple times, meaning that we may end up
   with something like this:
        ScalarValue(page1, 'x', 1)
        ScalarValue(page2, 'x', 4)
        ScalarValue(page1, 'x', 2)
        ScalarValue(page2, 'x', 5)
 
@@ skipping 102 matching lines @@
 
     if should_skip_value:
       continue
 
     key = key_func(value)
     if key not in merge_groups:
       merge_groups[key] = []
       merge_groups_in_creation_order.append(merge_groups[key])
     merge_groups[key].append(value)
   return merge_groups_in_creation_order