Maybe sub_error and not scope?

[Delgus]

hms-push-serverdemo-go/src/push/authention/auth.go

Line 41 in 5c37e3e

Scope string `json:"scope"`

Docs:
https://developer.huawei.com/consumer/en/doc/development/HMSCore-Guides/open-platform-oauth-0000001053629189#EN-US_TOPIC_0000001053629189__section12493191334711

[Delgus]

You can use embedded structures for response too

type authResponse struct {
	authInfo
	authError
}

type authInfo struct {
	AccessToken string `json:"access_token"`
	ExpiresIn   int    `json:"expires_in"`
	TokenType   string `json:"token_type"`
}

type authError struct {
	SubError         int    `json:"sub_error"`
	Error            int    `json:"error"`
	ErrorDescription string `json:"error_description"`
}

it's a good practice