adding docstring to the function

app.py

@@ -24,6 +24,15 @@ with open('labels.txt', "r") as f:
 
 
 def classify(image_raw):
+    """
+    Takes an image in PIL format as input and returns a text that gives the most likely label to the image, along with its score according to resnet34
+    
+    :param image_raw: The image to be classified/labeled
+    :type image_raw: PIL image
+    
+    :returns: a list of strings representing the header columns
+    :rtype: str
+    """
 
     ## preprocessing
     # we need a transform step to normalise the pictures