inscitiv/aws-sdk-cloudwatch — pull request #2 by misfo (2012-06-20 16:23:44+00:00)
Title: Specify output format for PutMetricData

Previously, all calls to this service produced the error:

lib/aws/core/xml/root_frame.rb:52:in `setup_indexes': undefined method `[]' for nil:NilClass (NoMethodError)