Imports github.com/polaris-team/dingtalk-sdk-golang/http github.com/polaris-team/dingtalk-sdk-golang/json github.com/modern-go/reflect2 github.com/polaris-team/dingtalk-sdk-golang/encrypt Standard library imports bytes crypto/rand encoding/base64 encoding/binary errors fmt io math/rand os reflect sort strconv time crypto/sha1 crypto/aes crypto/cipher