Returns a list of valid metrics stored for the AWS account owner.
Note
Up to 500 results are returned for any one call. To retrieve further results, use returned NextToken ( {@link org.jclouds.cloudwatch.domain.ListMetricsResponse#getNextToken()}) value with subsequent calls .To retrieve all available metrics with one call, use {@link org.jclouds.cloudwatch.CloudWatch#listMetrics(MetricApi,org.jclouds.cloudwatch.options.ListMetricsOptions)}
@param options the options describing the metrics query
@return the response object