сделал gpt4

vendor/github.com/sashabaranov/go-openai/error.go

@@ -0,0 +1,78 @@
+package openai
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+// APIError provides error information returned by the OpenAI API.
+type APIError struct {
+	Code           any     `json:"code,omitempty"`
+	Message        string  `json:"message"`
+	Param          *string `json:"param,omitempty"`
+	Type           string  `json:"type"`
+	HTTPStatusCode int     `json:"-"`
+}
+
+// RequestError provides informations about generic request errors.
+type RequestError struct {
+	HTTPStatusCode int
+	Err            error
+}
+
+type ErrorResponse struct {
+	Error *APIError `json:"error,omitempty"`
+}
+
+func (e *APIError) Error() string {
+	return e.Message
+}
+
+func (e *APIError) UnmarshalJSON(data []byte) (err error) {
+	var rawMap map[string]json.RawMessage
+	err = json.Unmarshal(data, &rawMap)
+	if err != nil {
+		return
+	}
+
+	err = json.Unmarshal(rawMap["message"], &e.Message)
+	if err != nil {
+		return
+	}
+
+	err = json.Unmarshal(rawMap["type"], &e.Type)
+	if err != nil {
+		return
+	}
+
+	// optional fields
+	if _, ok := rawMap["param"]; ok {
+		err = json.Unmarshal(rawMap["param"], &e.Param)
+		if err != nil {
+			return
+		}
+	}
+
+	if _, ok := rawMap["code"]; !ok {
+		return nil
+	}
+
+	// if the api returned a number, we need to force an integer
+	// since the json package defaults to float64
+	var intCode int
+	err = json.Unmarshal(rawMap["code"], &intCode)
+	if err == nil {
+		e.Code = intCode
+		return nil
+	}
+
+	return json.Unmarshal(rawMap["code"], &e.Code)
+}
+
+func (e *RequestError) Error() string {
+	return fmt.Sprintf("status code %d, message: %s", e.HTTPStatusCode, e.Err)
+}
+
+func (e *RequestError) Unwrap() error {
+	return e.Err
+}