allow passing EmptyEmbed to set_image and set_thumbnail

discord/embeds.py

@@ -276,12 +276,18 @@ class Embed:
         This function returns the class instance to allow for fluent-style
         chaining.
 
+        .. versionchanged:: 1.4
+            Passing :attr:`Empty` removes the image.
+
         Parameters
         -----------
         url: :class:`str`
             The source URL for the image. Only HTTP(S) is supported.
         """
 
+        if url is EmptyEmbed:
+            del self._image
+        else:
             self._image = {
                 'url': str(url)
             }
@@ -309,12 +315,18 @@ class Embed:
         This function returns the class instance to allow for fluent-style
         chaining.
 
+        .. versionchanged:: 1.4
+            Passing :attr:`Empty` removes the thumbnail.
+
         Parameters
         -----------
         url: :class:`str`
             The source URL for the thumbnail. Only HTTP(S) is supported.
         """
 
+        if url is EmptyEmbed:
+            del self._thumbnail
+        else:
             self._thumbnail = {
                 'url': str(url)
             }