fix: fix typing issue

Author: pycxxx

src/templates/exportService.hbs

@@ -1,5 +1,7 @@
 {{>header}}
 
+import { ClientOptions } from './core/{{{httpRequest}}}';
+
 {{#equals @root.httpClient 'angular'}}
 {{#if @root.exportClient}}
 import { Injectable } from '@angular/core';
@@ -10,8 +12,6 @@ import { HttpClient } from '@angular/common/http';
 import type { Observable } from 'rxjs';
 {{/if}}
 
-import { ClientOptions } from './core/{{{httpRequest}}}';
-
 {{/equals}}
 {{#if imports}}
 {{#each imports}}