fix: Fix TS error

Author: mrousavy

package/src/native/FilamentProxy.ts

@@ -1,11 +1,26 @@
 import { FilamentNativeModule } from './FilamentNativeModule'
 
+interface TestHybridObject {
+  int: number
+  string: string
+
+  multipleArguments(first: number, second: boolean, third: string): Record<string, number>
+  getIntGetter(): () => number
+  sayHelloCallback(callback: () => string): void
+  createNewHybridObject: () => TestHybridObject
+}
+
 export interface TFilamentProxy {
   /**
    * Loads a 3D Model from the given path.
    * @param path A web URL (http:// or https://), local file (file://) or resource ID.
    */
   loadModel(path: string): number
+
+  /**
+   * @private
+   */
+  createTestObject(): TestHybridObject
 }
 
 // Check if we are running on-device (JSI)

package/src/test/TestHybridObject.ts

@@ -1,20 +1,10 @@
 import { FilamentProxy } from '../native/FilamentProxy'
 
-interface TestHybridObject {
-  int: number
-  string: string
-
-  multipleArguments(first: number, second: boolean, third: string): Record<string, number>
-  getIntGetter(): () => number
-  sayHelloCallback(callback: () => string): void
-  createNewHybridObject: () => TestHybridObject
-}
-
 export function testHybridObject() {
   console.log('------ BEGIN HybridObject tests...')
   // 1. Creation
   console.log('Creating HybridObject...')
-  const hybridObject = FilamentProxy.createTestObject() as TestHybridObject
+  const hybridObject = FilamentProxy.createTestObject()
   console.log('Created HybridObject!')
 
   // 2. Logging the entire thing as JSON