lint: fix linter warnings reported by golangci-lint (#522)

- Fix #519

models_test.go

@@ -1,17 +1,16 @@
 package openai_test
 
 import (
-	"os"
-	"time"
-
-	. "github.com/sashabaranov/go-openai"
-	"github.com/sashabaranov/go-openai/internal/test/checks"
-
 	"context"
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"os"
 	"testing"
+	"time"
+
+	"github.com/sashabaranov/go-openai"
+	"github.com/sashabaranov/go-openai/internal/test/checks"
 )
 
 const testFineTuneModelID = "fine-tune-model-id"
@@ -35,7 +34,7 @@ func TestAzureListModels(t *testing.T) {
 
 // handleListModelsEndpoint Handles the list models endpoint by the test server.
 func handleListModelsEndpoint(w http.ResponseWriter, _ *http.Request) {
-	resBytes, _ := json.Marshal(ModelsList{})
+	resBytes, _ := json.Marshal(openai.ModelsList{})
 	fmt.Fprintln(w, string(resBytes))
 }
 
@@ -58,7 +57,7 @@ func TestAzureGetModel(t *testing.T) {
 
 // handleGetModelsEndpoint Handles the get model endpoint by the test server.
 func handleGetModelEndpoint(w http.ResponseWriter, _ *http.Request) {
-	resBytes, _ := json.Marshal(Model{})
+	resBytes, _ := json.Marshal(openai.Model{})
 	fmt.Fprintln(w, string(resBytes))
 }
 
@@ -90,6 +89,6 @@ func TestDeleteFineTuneModel(t *testing.T) {
 }
 
 func handleDeleteFineTuneModelEndpoint(w http.ResponseWriter, _ *http.Request) {
-	resBytes, _ := json.Marshal(FineTuneModelDeleteResponse{})
+	resBytes, _ := json.Marshal(openai.FineTuneModelDeleteResponse{})
 	fmt.Fprintln(w, string(resBytes))
 }