Imports github.com/prometheus/alertmanager/config github.com/prometheus/alertmanager/notify/webhook github.com/prometheus/alertmanager/pkg/labels github.com/prometheus/alertmanager/types github.com/prometheus/client_golang/api github.com/prometheus/common/model Standard library imports bytes context encoding/json fmt io/ioutil net net/http net/url os os/exec path/filepath reflect sync syscall testing time