Update app.py

app.py

@@ -10,7 +10,7 @@ import io
 DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 
 class AttachmentDownloadTool(Tool):
-    name = "attachment-downloader"
+    name = "attachment_downloader"
     description = "Downloads the file associated with the given task_id. If it does not exist, return None. input: task_id。output: attachment files bytes or None"
     inputs = {
         "task_id": {
@@ -32,7 +32,7 @@ class AttachmentDownloadTool(Tool):
             return None
 
 class ImageCaptionTool(Tool):
-    name = "image-captioner"
+    name = "image_captioner"
     description = "Identify the content of the input image and describe it in natural language. Input: image. Output: description text."
     inputs = {
         "image": {
@@ -60,7 +60,7 @@ class ImageCaptionTool(Tool):
         return str(result)
 
 class AudioToTextTool(Tool):
-    name = "audio-to-text"
+    name = "audio_to_text"
     description = "Convert the input audio content to text. Input: audio. Output: text."
     inputs = {
         "audio": {