diff options
| -rw-r--r-- | bot/constants.py | 1 | ||||
| -rw-r--r-- | bot/decorators.py | 45 | ||||
| -rw-r--r-- | bot/exts/backend/error_handler.py | 4 | ||||
| -rw-r--r-- | bot/exts/moderation/infraction/superstarify.py | 8 | ||||
| -rw-r--r-- | bot/exts/moderation/modlog.py | 9 | ||||
| -rw-r--r-- | bot/exts/moderation/modpings.py | 136 | ||||
| -rw-r--r-- | bot/exts/moderation/stream.py | 50 | ||||
| -rw-r--r-- | bot/exts/utils/reminders.py | 13 | ||||
| -rw-r--r-- | bot/exts/utils/snekbox.py | 10 | ||||
| -rw-r--r-- | bot/exts/utils/utils.py | 2 | ||||
| -rw-r--r-- | bot/resources/tags/customchecks.md | 21 | ||||
| -rw-r--r-- | bot/utils/checks.py | 8 | ||||
| -rw-r--r-- | config-default.yml | 6 | ||||
| -rw-r--r-- | tests/README.md | 2 | 
14 files changed, 285 insertions, 30 deletions
| diff --git a/bot/constants.py b/bot/constants.py index 14400700f..7f270e5bd 100644 --- a/bot/constants.py +++ b/bot/constants.py @@ -492,6 +492,7 @@ class Roles(metaclass=YAMLGetter):      domain_leads: int      helpers: int      moderators: int +    mod_team: int      owners: int      project_leads: int diff --git a/bot/decorators.py b/bot/decorators.py index 1d30317ef..e971a5bd3 100644 --- a/bot/decorators.py +++ b/bot/decorators.py @@ -11,7 +11,7 @@ from discord.ext.commands import Cog, Context  from bot.constants import Channels, DEBUG_MODE, RedirectOutput  from bot.utils import function -from bot.utils.checks import in_whitelist_check +from bot.utils.checks import ContextCheckFailure, in_whitelist_check  from bot.utils.function import command_wraps  log = logging.getLogger(__name__) @@ -45,6 +45,49 @@ def in_whitelist(      return commands.check(predicate) +class NotInBlacklistCheckFailure(ContextCheckFailure): +    """Raised when the 'not_in_blacklist' check fails.""" + + +def not_in_blacklist( +    *, +    channels: t.Container[int] = (), +    categories: t.Container[int] = (), +    roles: t.Container[int] = (), +    override_roles: t.Container[int] = (), +    redirect: t.Optional[int] = Channels.bot_commands, +    fail_silently: bool = False, +) -> t.Callable: +    """ +    Check if a command was not issued in a blacklisted context. + +    The blacklists that can be provided are: + +    - `channels`: a container with channel ids for blacklisted channels +    - `categories`: a container with category ids for blacklisted categories +    - `roles`: a container with role ids for blacklisted roles + +    If the command was invoked in a context that was blacklisted, the member is either +    redirected to the `redirect` channel that was passed (default: #bot-commands) or simply +    told that they're not allowed to use this particular command (if `None` was passed). + +    The blacklist can be overridden through the roles specified in `override_roles`. +    """ +    def predicate(ctx: Context) -> bool: +        """Check if command was issued in a blacklisted context.""" +        not_blacklisted = not in_whitelist_check(ctx, channels, categories, roles, fail_silently=True) +        overridden = in_whitelist_check(ctx, roles=override_roles, fail_silently=True) + +        success = not_blacklisted or overridden + +        if not success and not fail_silently: +            raise NotInBlacklistCheckFailure(redirect) + +        return success + +    return commands.check(predicate) + +  def has_no_roles(*roles: t.Union[str, int]) -> t.Callable:      """      Returns True if the user does not have any of the roles specified. diff --git a/bot/exts/backend/error_handler.py b/bot/exts/backend/error_handler.py index 76ab7dfc2..da0e94a7e 100644 --- a/bot/exts/backend/error_handler.py +++ b/bot/exts/backend/error_handler.py @@ -12,7 +12,7 @@ from bot.bot import Bot  from bot.constants import Colours, Icons, MODERATION_ROLES  from bot.converters import TagNameConverter  from bot.errors import InvalidInfractedUser, LockedResourceError -from bot.utils.checks import InWhitelistCheckFailure +from bot.utils.checks import ContextCheckFailure  log = logging.getLogger(__name__) @@ -274,7 +274,7 @@ class ErrorHandler(Cog):              await ctx.send(                  "Sorry, it looks like I don't have the permissions or roles I need to do that."              ) -        elif isinstance(e, (InWhitelistCheckFailure, errors.NoPrivateMessage)): +        elif isinstance(e, (ContextCheckFailure, errors.NoPrivateMessage)):              ctx.bot.stats.incr("errors.wrong_channel_or_dm_error")              await ctx.send(e) diff --git a/bot/exts/moderation/infraction/superstarify.py b/bot/exts/moderation/infraction/superstarify.py index 704dddf9c..07e79b9fe 100644 --- a/bot/exts/moderation/infraction/superstarify.py +++ b/bot/exts/moderation/infraction/superstarify.py @@ -11,7 +11,7 @@ from discord.utils import escape_markdown  from bot import constants  from bot.bot import Bot -from bot.converters import Expiry +from bot.converters import Duration, Expiry  from bot.exts.moderation.infraction import _utils  from bot.exts.moderation.infraction._scheduler import InfractionScheduler  from bot.utils.messages import format_user @@ -19,6 +19,7 @@ from bot.utils.time import format_infraction  log = logging.getLogger(__name__)  NICKNAME_POLICY_URL = "https://pythondiscord.com/pages/rules/#nickname-policy" +SUPERSTARIFY_DEFAULT_DURATION = "1h"  with Path("bot/resources/stars.json").open(encoding="utf-8") as stars_file:      STAR_NAMES = json.load(stars_file) @@ -109,7 +110,7 @@ class Superstarify(InfractionScheduler, Cog):          self,          ctx: Context,          member: Member, -        duration: Expiry, +        duration: t.Optional[Expiry],          *,          reason: str = '',      ) -> None: @@ -134,6 +135,9 @@ class Superstarify(InfractionScheduler, Cog):          if await _utils.get_active_infraction(ctx, member, "superstar"):              return +        # Set to default duration if none was provided. +        duration = duration or await Duration().convert(ctx, SUPERSTARIFY_DEFAULT_DURATION) +          # Post the infraction to the API          old_nick = member.display_name          infraction_reason = f'Old nickname: {old_nick}. {reason}' diff --git a/bot/exts/moderation/modlog.py b/bot/exts/moderation/modlog.py index 2dae9d268..e92f76c9a 100644 --- a/bot/exts/moderation/modlog.py +++ b/bot/exts/moderation/modlog.py @@ -14,7 +14,7 @@ from discord.abc import GuildChannel  from discord.ext.commands import Cog, Context  from bot.bot import Bot -from bot.constants import Categories, Channels, Colours, Emojis, Event, Guild as GuildConstant, Icons, URLs +from bot.constants import Categories, Channels, Colours, Emojis, Event, Guild as GuildConstant, Icons, Roles, URLs  from bot.utils.messages import format_user  from bot.utils.time import humanize_delta @@ -115,9 +115,9 @@ class ModLog(Cog, name="ModLog"):          if ping_everyone:              if content: -                content = f"@everyone\n{content}" +                content = f"<@&{Roles.moderators}>\n{content}"              else: -                content = "@everyone" +                content = f"<@&{Roles.moderators}>"          # Truncate content to 2000 characters and append an ellipsis.          if content and len(content) > 2000: @@ -127,8 +127,7 @@ class ModLog(Cog, name="ModLog"):          log_message = await channel.send(              content=content,              embed=embed, -            files=files, -            allowed_mentions=discord.AllowedMentions(everyone=True) +            files=files          )          if additional_embeds: diff --git a/bot/exts/moderation/modpings.py b/bot/exts/moderation/modpings.py new file mode 100644 index 000000000..2f180e594 --- /dev/null +++ b/bot/exts/moderation/modpings.py @@ -0,0 +1,136 @@ +import datetime +import logging + +from async_rediscache import RedisCache +from dateutil.parser import isoparse +from discord import Member +from discord.ext.commands import Cog, Context, group, has_any_role + +from bot.bot import Bot +from bot.constants import Emojis, Guild, MODERATION_ROLES, Roles +from bot.converters import Expiry +from bot.utils.scheduling import Scheduler + +log = logging.getLogger(__name__) + + +class ModPings(Cog): +    """Commands for a moderator to turn moderator pings on and off.""" + +    # RedisCache[discord.Member.id, 'Naïve ISO 8601 string'] +    # The cache's keys are mods who have pings off. +    # The cache's values are the times when the role should be re-applied to them, stored in ISO format. +    pings_off_mods = RedisCache() + +    def __init__(self, bot: Bot): +        self.bot = bot +        self._role_scheduler = Scheduler(self.__class__.__name__) + +        self.guild = None +        self.moderators_role = None + +        self.reschedule_task = self.bot.loop.create_task(self.reschedule_roles(), name="mod-pings-reschedule") + +    async def reschedule_roles(self) -> None: +        """Reschedule moderators role re-apply times.""" +        await self.bot.wait_until_guild_available() +        self.guild = self.bot.get_guild(Guild.id) +        self.moderators_role = self.guild.get_role(Roles.moderators) + +        mod_team = self.guild.get_role(Roles.mod_team) +        pings_on = self.moderators_role.members +        pings_off = await self.pings_off_mods.to_dict() + +        log.trace("Applying the moderators role to the mod team where necessary.") +        for mod in mod_team.members: +            if mod in pings_on:  # Make sure that on-duty mods aren't in the cache. +                if mod in pings_off: +                    await self.pings_off_mods.delete(mod.id) +                continue + +            # Keep the role off only for those in the cache. +            if mod.id not in pings_off: +                await self.reapply_role(mod) +            else: +                expiry = isoparse(pings_off[mod.id]).replace(tzinfo=None) +                self._role_scheduler.schedule_at(expiry, mod.id, self.reapply_role(mod)) + +    async def reapply_role(self, mod: Member) -> None: +        """Reapply the moderator's role to the given moderator.""" +        log.trace(f"Re-applying role to mod with ID {mod.id}.") +        await mod.add_roles(self.moderators_role, reason="Pings off period expired.") + +    @group(name='modpings', aliases=('modping',), invoke_without_command=True) +    @has_any_role(*MODERATION_ROLES) +    async def modpings_group(self, ctx: Context) -> None: +        """Allow the removal and re-addition of the pingable moderators role.""" +        await ctx.send_help(ctx.command) + +    @modpings_group.command(name='off') +    @has_any_role(*MODERATION_ROLES) +    async def off_command(self, ctx: Context, duration: Expiry) -> None: +        """ +        Temporarily removes the pingable moderators role for a set amount of time. + +        A unit of time should be appended to the duration. +        Units (∗case-sensitive): +        \u2003`y` - years +        \u2003`m` - months∗ +        \u2003`w` - weeks +        \u2003`d` - days +        \u2003`h` - hours +        \u2003`M` - minutes∗ +        \u2003`s` - seconds + +        Alternatively, an ISO 8601 timestamp can be provided for the duration. + +        The duration cannot be longer than 30 days. +        """ +        duration: datetime.datetime +        delta = duration - datetime.datetime.utcnow() +        if delta > datetime.timedelta(days=30): +            await ctx.send(":x: Cannot remove the role for longer than 30 days.") +            return + +        mod = ctx.author + +        until_date = duration.replace(microsecond=0).isoformat()  # Looks noisy with microseconds. +        await mod.remove_roles(self.moderators_role, reason=f"Turned pings off until {until_date}.") + +        await self.pings_off_mods.set(mod.id, duration.isoformat()) + +        # Allow rescheduling the task without cancelling it separately via the `on` command. +        if mod.id in self._role_scheduler: +            self._role_scheduler.cancel(mod.id) +        self._role_scheduler.schedule_at(duration, mod.id, self.reapply_role(mod)) + +        await ctx.send(f"{Emojis.check_mark} Moderators role has been removed until {until_date}.") + +    @modpings_group.command(name='on') +    @has_any_role(*MODERATION_ROLES) +    async def on_command(self, ctx: Context) -> None: +        """Re-apply the pingable moderators role.""" +        mod = ctx.author +        if mod in self.moderators_role.members: +            await ctx.send(":question: You already have the role.") +            return + +        await mod.add_roles(self.moderators_role, reason="Pings off period canceled.") + +        await self.pings_off_mods.delete(mod.id) + +        # We assume the task exists. Lack of it may indicate a bug. +        self._role_scheduler.cancel(mod.id) + +        await ctx.send(f"{Emojis.check_mark} Moderators role has been re-applied.") + +    def cog_unload(self) -> None: +        """Cancel role tasks when the cog unloads.""" +        log.trace("Cog unload: canceling role tasks.") +        self.reschedule_task.cancel() +        self._role_scheduler.cancel_all() + + +def setup(bot: Bot) -> None: +    """Load the ModPings cog.""" +    bot.add_cog(ModPings(bot)) diff --git a/bot/exts/moderation/stream.py b/bot/exts/moderation/stream.py index 12e195172..1dbb2a46b 100644 --- a/bot/exts/moderation/stream.py +++ b/bot/exts/moderation/stream.py @@ -1,5 +1,6 @@  import logging  from datetime import timedelta, timezone +from operator import itemgetter  import arrow  import discord @@ -8,8 +9,9 @@ from async_rediscache import RedisCache  from discord.ext import commands  from bot.bot import Bot -from bot.constants import Colours, Emojis, Guild, Roles, STAFF_ROLES, VideoPermission +from bot.constants import Colours, Emojis, Guild, MODERATION_ROLES, Roles, STAFF_ROLES, VideoPermission  from bot.converters import Expiry +from bot.pagination import LinePaginator  from bot.utils.scheduling import Scheduler  from bot.utils.time import format_infraction_with_duration @@ -69,7 +71,7 @@ class Stream(commands.Cog):              )      @commands.command(aliases=("streaming",)) -    @commands.has_any_role(*STAFF_ROLES) +    @commands.has_any_role(*MODERATION_ROLES)      async def stream(self, ctx: commands.Context, member: discord.Member, duration: Expiry = None) -> None:          """          Temporarily grant streaming permissions to a member for a given duration. @@ -126,7 +128,7 @@ class Stream(commands.Cog):          log.debug(f"Successfully gave {member} ({member.id}) permission to stream until {revoke_time}.")      @commands.command(aliases=("pstream",)) -    @commands.has_any_role(*STAFF_ROLES) +    @commands.has_any_role(*MODERATION_ROLES)      async def permanentstream(self, ctx: commands.Context, member: discord.Member) -> None:          """Permanently grants the given member the permission to stream."""          log.trace(f"Attempting to give permanent streaming permission to {member} ({member.id}).") @@ -153,7 +155,7 @@ class Stream(commands.Cog):          log.debug(f"Successfully gave {member} ({member.id}) permanent streaming permission.")      @commands.command(aliases=("unstream", "rstream")) -    @commands.has_any_role(*STAFF_ROLES) +    @commands.has_any_role(*MODERATION_ROLES)      async def revokestream(self, ctx: commands.Context, member: discord.Member) -> None:          """Revoke the permission to stream from the given member."""          log.trace(f"Attempting to remove streaming permission from {member} ({member.id}).") @@ -173,6 +175,46 @@ class Stream(commands.Cog):          await ctx.send(f"{Emojis.cross_mark} This member doesn't have video permissions to remove!")          log.debug(f"{member} ({member.id}) didn't have the streaming permission to remove!") +    @commands.command(aliases=('lstream',)) +    @commands.has_any_role(*MODERATION_ROLES) +    async def liststream(self, ctx: commands.Context) -> None: +        """Lists all non-staff users who have permission to stream.""" +        non_staff_members_with_stream = [ +            member +            for member in ctx.guild.get_role(Roles.video).members +            if not any(role.id in STAFF_ROLES for role in member.roles) +        ] + +        # List of tuples (UtcPosixTimestamp, str) +        # So that the list can be sorted on the UtcPosixTimestamp before the message is passed to the paginator. +        streamer_info = [] +        for member in non_staff_members_with_stream: +            if revoke_time := await self.task_cache.get(member.id): +                # Member only has temporary streaming perms +                revoke_delta = Arrow.utcfromtimestamp(revoke_time).humanize() +                message = f"{member.mention} will have stream permissions revoked {revoke_delta}." +            else: +                message = f"{member.mention} has permanent streaming permissions." + +            # If revoke_time is None use max timestamp to force sort to put them at the end +            streamer_info.append( +                (revoke_time or Arrow.max.timestamp(), message) +            ) + +        if streamer_info: +            # Sort based on duration left of streaming perms +            streamer_info.sort(key=itemgetter(0)) + +            # Only output the message in the pagination +            lines = [line[1] for line in streamer_info] +            embed = discord.Embed( +                title=f"Members with streaming permission (`{len(lines)}` total)", +                colour=Colours.soft_green +            ) +            await LinePaginator.paginate(lines, ctx, embed, max_size=400, empty=False) +        else: +            await ctx.send("No members with stream permissions found.") +  def setup(bot: Bot) -> None:      """Loads the Stream cog.""" diff --git a/bot/exts/utils/reminders.py b/bot/exts/utils/reminders.py index 3113a1149..6c21920a1 100644 --- a/bot/exts/utils/reminders.py +++ b/bot/exts/utils/reminders.py @@ -90,15 +90,18 @@ class Reminders(Cog):          delivery_dt: t.Optional[datetime],      ) -> None:          """Send an embed confirming the reminder change was made successfully.""" -        embed = discord.Embed() -        embed.colour = discord.Colour.green() -        embed.title = random.choice(POSITIVE_REPLIES) -        embed.description = on_success +        embed = discord.Embed( +            description=on_success, +            colour=discord.Colour.green(), +            title=random.choice(POSITIVE_REPLIES) +        )          footer_str = f"ID: {reminder_id}" +          if delivery_dt:              # Reminder deletion will have a `None` `delivery_dt` -            footer_str = f"{footer_str}, Due: {delivery_dt.strftime('%Y-%m-%dT%H:%M:%S')}" +            footer_str += ', Due' +            embed.timestamp = delivery_dt          embed.set_footer(text=footer_str) diff --git a/bot/exts/utils/snekbox.py b/bot/exts/utils/snekbox.py index 9f480c067..da95240bb 100644 --- a/bot/exts/utils/snekbox.py +++ b/bot/exts/utils/snekbox.py @@ -13,7 +13,7 @@ from discord.ext.commands import Cog, Context, command, guild_only  from bot.bot import Bot  from bot.constants import Categories, Channels, Roles, URLs -from bot.decorators import in_whitelist +from bot.decorators import not_in_blacklist  from bot.utils import send_to_paste_service  from bot.utils.messages import wait_for_deletion @@ -38,9 +38,9 @@ RAW_CODE_REGEX = re.compile(  MAX_PASTE_LEN = 10000 -# `!eval` command whitelists -EVAL_CHANNELS = (Channels.bot_commands, Channels.esoteric) -EVAL_CATEGORIES = (Categories.help_available, Categories.help_in_use, Categories.voice) +# `!eval` command whitelists and blacklists. +NO_EVAL_CHANNELS = (Channels.python_general,) +NO_EVAL_CATEGORIES = ()  EVAL_ROLES = (Roles.helpers, Roles.moderators, Roles.admins, Roles.owners, Roles.python_community, Roles.partners)  SIGKILL = 9 @@ -280,7 +280,7 @@ class Snekbox(Cog):      @command(name="eval", aliases=("e",))      @guild_only() -    @in_whitelist(channels=EVAL_CHANNELS, categories=EVAL_CATEGORIES, roles=EVAL_ROLES) +    @not_in_blacklist(channels=NO_EVAL_CHANNELS, categories=NO_EVAL_CATEGORIES, override_roles=EVAL_ROLES)      async def eval_command(self, ctx: Context, *, code: str = None) -> None:          """          Run Python code and get the results. diff --git a/bot/exts/utils/utils.py b/bot/exts/utils/utils.py index 8d9d27c64..4c39a7c2a 100644 --- a/bot/exts/utils/utils.py +++ b/bot/exts/utils/utils.py @@ -109,7 +109,7 @@ class Utils(Cog):          # handle if it's an index int          if isinstance(search_value, int):              upper_bound = len(zen_lines) - 1 -            lower_bound = -1 * upper_bound +            lower_bound = -1 * len(zen_lines)              if not (lower_bound <= search_value <= upper_bound):                  raise BadArgument(f"Please provide an index between {lower_bound} and {upper_bound}.") diff --git a/bot/resources/tags/customchecks.md b/bot/resources/tags/customchecks.md new file mode 100644 index 000000000..23ff7a66f --- /dev/null +++ b/bot/resources/tags/customchecks.md @@ -0,0 +1,21 @@ +**Custom Command Checks in discord.py** + +Often you may find the need to use checks that don't exist by default in discord.py. Fortunately, discord.py provides `discord.ext.commands.check` which allows you to create you own checks like this: +```py +from discord.ext.commands import check, Context + +def in_any_channel(*channels): +  async def predicate(ctx: Context): +    return ctx.channel.id in channels +  return check(predicate) +``` +This check is to check whether the invoked command is in a given set of channels. The inner function, named `predicate` here, is used to perform the actual check on the command, and check logic should go in this function. It must be an async function, and always provides a single `commands.Context` argument which you can use to create check logic. This check function should return a boolean value indicating whether the check passed (return `True`) or failed (return `False`). + +The check can now be used like any other commands check as a decorator of a command, such as this: +```py [email protected](name="ping") +@in_any_channel(728343273562701984) +async def ping(ctx: Context): +  ... +``` +This would lock the `ping` command to only be used in the channel `728343273562701984`. If this check function fails it will raise a `CheckFailure` exception, which can be handled in your error handler. diff --git a/bot/utils/checks.py b/bot/utils/checks.py index 460a937d8..3d0c8a50c 100644 --- a/bot/utils/checks.py +++ b/bot/utils/checks.py @@ -20,8 +20,8 @@ from bot import constants  log = logging.getLogger(__name__) -class InWhitelistCheckFailure(CheckFailure): -    """Raised when the `in_whitelist` check fails.""" +class ContextCheckFailure(CheckFailure): +    """Raised when a context-specific check fails."""      def __init__(self, redirect_channel: Optional[int]) -> None:          self.redirect_channel = redirect_channel @@ -36,6 +36,10 @@ class InWhitelistCheckFailure(CheckFailure):          super().__init__(error_message) +class InWhitelistCheckFailure(ContextCheckFailure): +    """Raised when the `in_whitelist` check fails.""" + +  def in_whitelist_check(      ctx: Context,      channels: Container[int] = (), diff --git a/config-default.yml b/config-default.yml index b9786925d..2830fd109 100644 --- a/config-default.yml +++ b/config-default.yml @@ -261,7 +261,8 @@ guild:          devops:                             409416496733880320          domain_leads:                       807415650778742785          helpers:            &HELPERS_ROLE   267630620367257601 -        moderators:         &MODS_ROLE      267629731250176001 +        moderators:         &MODS_ROLE      831776746206265384 +        mod_team:           &MOD_TEAM_ROLE  267629731250176001          owners:             &OWNERS_ROLE    267627879762755584          project_leads:                      815701647526330398 @@ -274,13 +275,14 @@ guild:      moderation_roles:          - *ADMINS_ROLE +        - *MOD_TEAM_ROLE          - *MODS_ROLE          - *OWNERS_ROLE      staff_roles:          - *ADMINS_ROLE          - *HELPERS_ROLE -        - *MODS_ROLE +        - *MOD_TEAM_ROLE          - *OWNERS_ROLE      webhooks: diff --git a/tests/README.md b/tests/README.md index 4f62edd68..092324123 100644 --- a/tests/README.md +++ b/tests/README.md @@ -114,7 +114,7 @@ class BotCogTests(unittest.TestCase):  ### Mocking coroutines -By default, the `unittest.mock.Mock` and `unittest.mock.MagicMock` classes cannot mock coroutines, since the `__call__` method they provide is synchronous. In anticipation of the `AsyncMock` that will be [introduced in Python 3.8](https://docs.python.org/3.9/whatsnew/3.8.html#unittest), we have added an `AsyncMock` helper to [`helpers.py`](/tests/helpers.py). Do note that this drop-in replacement only implements an asynchronous `__call__` method, not the additional assertions that will come with the new `AsyncMock` type in Python 3.8. +By default, the `unittest.mock.Mock` and `unittest.mock.MagicMock` classes cannot mock coroutines, since the `__call__` method they provide is synchronous. The [`AsyncMock`](https://docs.python.org/3/library/unittest.mock.html#unittest.mock.AsyncMock) that has been [introduced in Python 3.8](https://docs.python.org/3.9/whatsnew/3.8.html#unittest) is an asynchronous version of `MagicMock` that can be used anywhere a coroutine is expected.  ### Special mocks for some `discord.py` types | 
