Allow finer grained control over the member cache.

discord/guild.py

@@ -305,11 +305,12 @@ class Guild(Hashable):
         self._rules_channel_id = utils._get_as_snowflake(guild, 'rules_channel_id')
         self._public_updates_channel_id = utils._get_as_snowflake(guild, 'public_updates_channel_id')
 
-        cache_members = self._state._cache_members
+        cache_online_members = self._state._member_cache_flags.online
+        cache_joined = self._state._member_cache_flags.joined
         self_id = self._state.self_id
         for mdata in guild.get('members', []):
             member = Member(data=mdata, guild=self, state=state)
-            if cache_members or member.id == self_id:
+            if cache_joined or (cache_online_members and member.raw_status != 'offline') or member.id == self_id:
                 self._add_member(member)
 
         self._sync(guild)