further refine chromehistory output

src/GamCommands.txt

@@ -989,6 +989,8 @@ gam info customer
 
 <DataTransferService> ::=
 	calendar|
+	currents|
+	datastudio|"google data studio"|
 	googledrive|gdrive|drive|"drive and docs"
 <DataTransferServiceList> ::= "<DataTransferService>(,<DataTransferService>)*"
 

src/gam/gapi/chromehistory.py

@@ -78,7 +78,6 @@ def get_relative_milestone(channel='stable', minus=0):
     returns current given milestone number
     '''
     cv = build()
-    svc = cv.platforms().channels().versions().releases()
     parent = f'chrome/platforms/all/channels/{channel}/versions/all'
     releases = gapi.get_all_pages(cv.platforms().channels().versions().releases(),
                                   'list',

src/gam/var.py

@@ -384,16 +384,21 @@ ADDRESS_FIELDS_ARGUMENT_MAP = {
 }
 
 SERVICE_NAME_TO_ID_MAP = {
+    'Calendar': '435070579839',
+    'Currents': '553547912911',
     'Drive and Docs': '55656082996',
-    'Calendar': '435070579839'
+    'Google Data Studio': '810260081642',
 }
 
 SERVICE_NAME_CHOICES_MAP = {
+    'calendar': 'Calendar',
+    'currents': 'Currents',
+    'datastudio': 'Google Data Studio',
+    'google data studio': 'Google Data Studio',
     'drive': 'Drive and Docs',
     'drive and docs': 'Drive and Docs',
     'googledrive': 'Drive and Docs',
     'gdrive': 'Drive and Docs',
-    'calendar': 'Calendar',
 }
 
 PRINTJOB_ASCENDINGORDER_MAP = {