refactor(g4f/Provider/PollinationsImage.py): Improve model synchroniz…

…ation and initialization

g4f/Provider/PollinationsImage.py

@@ -11,12 +11,22 @@ class PollinationsImage(PollinationsAI):
     default_model = "flux"
     default_vision_model = None
     default_image_model = default_model
-    image_models = []
+    image_models = [default_image_model]  # Default models
+    _models_loaded = False  # Add a checkbox for synchronization
 
     @classmethod
     def get_models(cls, **kwargs):
-        if not cls.image_models:
-            cls.image_models = list(dict.fromkeys([*cls.image_models, *cls.extra_image_models]))
+        if not cls._models_loaded:
+            # Calling the parent method to load models
+            super().get_models()
+            # Combine models from the parent class and additional ones
+            all_image_models = list(dict.fromkeys(
+                cls.image_models +
+                PollinationsAI.image_models +
+                cls.extra_image_models
+            ))
+            cls.image_models = all_image_models
+            cls._models_loaded = True
         return cls.image_models
 
     @classmethod
@@ -36,6 +46,8 @@ async def create_async_generator(
         safe: bool = False,
         **kwargs
     ) -> AsyncResult:
+        # Calling model updates before creating a generator
+        cls.get_models()
         async for chunk in cls._generate_image(
             model=model,
             prompt=format_image_prompt(messages, prompt),