Imports github.com/aliyun/alibaba-cloud-sdk-go/sdk/requests github.com/aliyun/alibaba-cloud-sdk-go/services/onsmqtt github.com/eclipse/paho.mqtt.golang github.com/pkg/errors github.com/satori/go.uuid Standard library imports crypto/hmac crypto/sha1 encoding/base64 fmt log reflect sort strconv strings sync time