using import type instead of import for types imports (#12534)

Author: orange-buffalo

modules/openapi-generator/src/main/resources/typescript-fetch/apis.mustache

@@ -4,15 +4,19 @@
 
 import * as runtime from '../runtime';
 {{#imports.0}}
+import type {
+  {{#imports}}
+  {{className}},
+  {{/imports}}
+} from '../models';
+{{^withoutRuntimeChecks}}
 import {
     {{#imports}}
-    {{className}},
-    {{^withoutRuntimeChecks}}
     {{className}}FromJSON,
     {{className}}ToJSON,
-    {{/withoutRuntimeChecks}}
     {{/imports}}
 } from '../models';
+{{/withoutRuntimeChecks}}
 {{/imports.0}}
 
 {{#operations}}

modules/openapi-generator/src/main/resources/typescript-fetch/modelGeneric.mustache

@@ -1,8 +1,8 @@
 import { exists, mapValues } from '../runtime';
 {{#hasImports}}
 {{#imports}}
+import type { {{{.}}} } from './{{.}}';
 import {
-    {{{.}}},
     {{.}}FromJSON,
     {{.}}FromJSONTyped,
     {{.}}ToJSON,

samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/AnotherFakeApi.ts

@@ -14,8 +14,10 @@
 
 
 import * as runtime from '../runtime';
+import type {
+  Client,
+} from '../models';
 import {
-    Client,
     ClientFromJSON,
     ClientToJSON,
 } from '../models';

samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/DefaultApi.ts

@@ -14,8 +14,10 @@
 
 
 import * as runtime from '../runtime';
+import type {
+  FooGetDefaultResponse,
+} from '../models';
 import {
-    FooGetDefaultResponse,
     FooGetDefaultResponseFromJSON,
     FooGetDefaultResponseToJSON,
 } from '../models';

samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/FakeApi.ts

@@ -14,29 +14,31 @@
 
 
 import * as runtime from '../runtime';
+import type {
+  Client,
+  EnumClass,
+  FileSchemaTestClass,
+  HealthCheckResult,
+  OuterComposite,
+  OuterObjectWithEnumProperty,
+  Pet,
+  User,
+} from '../models';
 import {
-    Client,
     ClientFromJSON,
     ClientToJSON,
-    EnumClass,
     EnumClassFromJSON,
     EnumClassToJSON,
-    FileSchemaTestClass,
     FileSchemaTestClassFromJSON,
     FileSchemaTestClassToJSON,
-    HealthCheckResult,
     HealthCheckResultFromJSON,
     HealthCheckResultToJSON,
-    OuterComposite,
     OuterCompositeFromJSON,
     OuterCompositeToJSON,
-    OuterObjectWithEnumProperty,
     OuterObjectWithEnumPropertyFromJSON,
     OuterObjectWithEnumPropertyToJSON,
-    Pet,
     PetFromJSON,
     PetToJSON,
-    User,
     UserFromJSON,
     UserToJSON,
 } from '../models';

samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/FakeClassnameTags123Api.ts

@@ -14,8 +14,10 @@
 
 
 import * as runtime from '../runtime';
+import type {
+  Client,
+} from '../models';
 import {
-    Client,
     ClientFromJSON,
     ClientToJSON,
 } from '../models';

samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/PetApi.ts

@@ -14,11 +14,13 @@
 
 
 import * as runtime from '../runtime';
+import type {
+  ModelApiResponse,
+  Pet,
+} from '../models';
 import {
-    ModelApiResponse,
     ModelApiResponseFromJSON,
     ModelApiResponseToJSON,
-    Pet,
     PetFromJSON,
     PetToJSON,
 } from '../models';

samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/StoreApi.ts

@@ -14,8 +14,10 @@
 
 
 import * as runtime from '../runtime';
+import type {
+  Order,
+} from '../models';
 import {
-    Order,
     OrderFromJSON,
     OrderToJSON,
 } from '../models';

samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/UserApi.ts

@@ -14,8 +14,10 @@
 
 
 import * as runtime from '../runtime';
+import type {
+  User,
+} from '../models';
 import {
-    User,
     UserFromJSON,
     UserToJSON,
 } from '../models';

samples/client/petstore/typescript-fetch/builds/default-v3.0/models/AllOfWithSingleRef.ts

@@ -13,8 +13,8 @@
  */
 
 import { exists, mapValues } from '../runtime';
+import type { SingleRefType } from './SingleRefType';
 import {
-    SingleRefType,
     SingleRefTypeFromJSON,
     SingleRefTypeFromJSONTyped,
     SingleRefTypeToJSON,