[](https://www.fast.ai/posts/2025-02-20-fasttransform.html#cb30-1)# Method 2: Create a Transform subclass
[](https://www.fast.ai/posts/2025-02-20-fasttransform.html#cb30-2)class MyTransform(Transform):
[](https://www.fast.ai/posts/2025-02-20-fasttransform.html#cb30-3)    def encodes(self, x:str): return f"encoded str: {x=}"
[](https://www.fast.ai/posts/2025-02-20-fasttransform.html#cb30-4)    def encodes(self, x:int): return f"encoded int: {x=}"
[](https://www.fast.ai/posts/2025-02-20-fasttransform.html#cb30-5)    
[](https://www.fast.ai/posts/2025-02-20-fasttransform.html#cb30-6)my_transform = MyTransform()
[](https://www.fast.ai/posts/2025-02-20-fasttransform.html#cb30-7)my_transform(("my str", 42))