Update textbox_with_upload.py

textbox_with_upload.py

@@ -1,11 +1,14 @@
 import gradio as gr
 from gradio.components import Textbox
 from gradio.components.base import Component
+from gradio import component
 
+@component
 class TextboxWithUpload(Textbox):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.upload_button = None
+        self.add_upload_button()
 
     def add_upload_button(self):
         self.upload_button = gr.UploadButton("📎", file_types=["text"], file_count="single")
@@ -24,5 +27,3 @@ class TextboxWithUpload(Textbox):
 
     def get_block_name(self):
         return "textboxwithupload"
-
-gr.components.COMPONENT_MAPPING["textboxwithupload"] = TextboxWithUpload