Unfortunately the selectable field representing bids depends on the
type of bidding that adgroup or adgroupcriterion uses.
If your using ManualCPC bidding then you select based on this page:
http://code.google.com/apis/adwords/docs/reference/latest/AdGroupCriterionService.ManualCPCAdGroupCriterion
I am in the process of upgrading some of our code from v201008 to
v201101 and the bids field in the BiddableAdGroupCriterion array that
is returned by the AdGroupCriterionService.get method seems to always
be null in v201101. The documentation does NOT indicate that this
fields is selectable. A s
