Imports github.com/aws/aws-sdk-go/aws/credentials github.com/aws/aws-sdk-go/aws/session github.com/aws/aws-sdk-go/service/cloudwatch github.com/aws/aws-sdk-go/service/cloudwatch/cloudwatchiface github.com/mackerelio/go-mackerel-plugin-helper golang.org/x/sync/errgroup Standard library imports flag log strings sync time