Add support for silent messages

discord/abc.py

@@ -1315,6 +1315,7 @@ class Messageable:
         mention_author: bool = ...,
         view: View = ...,
         suppress_embeds: bool = ...,
+        silent: bool = ...,
     ) -> Message:
         ...
 
@@ -1334,6 +1335,7 @@ class Messageable:
         mention_author: bool = ...,
         view: View = ...,
         suppress_embeds: bool = ...,
+        silent: bool = ...,
     ) -> Message:
         ...
 
@@ -1353,6 +1355,7 @@ class Messageable:
         mention_author: bool = ...,
         view: View = ...,
         suppress_embeds: bool = ...,
+        silent: bool = ...,
     ) -> Message:
         ...
 
@@ -1372,6 +1375,7 @@ class Messageable:
         mention_author: bool = ...,
         view: View = ...,
         suppress_embeds: bool = ...,
+        silent: bool = ...,
     ) -> Message:
         ...
 
@@ -1392,6 +1396,7 @@ class Messageable:
         mention_author: Optional[bool] = None,
         view: Optional[View] = None,
         suppress_embeds: bool = False,
+        silent: bool = False,
     ) -> Message:
         """|coro|
 
@@ -1472,6 +1477,11 @@ class Messageable:
             Whether to suppress embeds for the message. This sends the message without any embeds if set to ``True``.
 
             .. versionadded:: 2.0
+        silent: :class:`bool`
+            Whether to suppress push and desktop notifications for the message. This will increment the mention counter
+            in the UI, but will not actually send a notification.
+
+            .. versionadded:: 2.2
 
         Raises
         --------
@@ -1514,10 +1524,12 @@ class Messageable:
         if view and not hasattr(view, '__discord_ui_view__'):
             raise TypeError(f'view parameter must be View not {view.__class__.__name__}')
 
-        if suppress_embeds:
+        if suppress_embeds or silent:
             from .message import MessageFlags  # circular import
 
-            flags = MessageFlags._from_value(4)
+            flags = MessageFlags._from_value(0)
+            flags.suppress_embeds = suppress_embeds
+            flags.suppress_notifications = silent
         else:
             flags = MISSING