Imports github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/profile github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/errors github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/http Standard library imports crypto/hmac crypto/sha256 crypto/sha1 net/http/httputil bytes encoding/base64 encoding/hex encoding/json fmt log net/http sort strconv strings time