def get(namespace, metric_name, dimensions=nil, period=nil, statistic=nil, unit=nil)
list_opts = {'Namespace' => namespace, 'MetricName' => metric_name}
if dimensions
dimensions_array = dimensions.map do |name, value|
{'Name' => name, 'Value' => value}
end
list_opts.merge!('Dimensions' => dimensions_array)
end
if period
list_opts.merge!('Period' => period)
end
if statistic
list_opts.merge!('Statistic' => statistic)
end
if unit
list_opts.merge!('Unit' => unit)
end
data = service.describe_alarms_for_metric(list_opts).body['DescribeAlarmsForMetricResult']['MetricAlarms']
load(data)
end