# Buggy code
async def format_command_help(self, ctx: Context, obj: commands.Command):
    send = self.CONFIRM_UNAVAILABLE_COMMAND_EXISTENCES
    if not send:
        async for _ in self.help_filter_func(ctx, (obj,), bypass_hidden=True):
            # This is a really lazy option for not
            # creating a separate single case version.
            # It is efficient though
            #
            # We do still want to bypass the hidden requirement on
            # a specific command explicitly invoked here.
            send = True

    if not send:
        return

    command = obj

    description = command.description or ""
    tagline = (await ctx.bot.db.help.tagline()) or self.get_default_tagline(ctx)
    signature = (
        f"`Syntax: {ctx.clean_prefix}{command.qualified_name} {command.signature}`"
    )
    subcommands = None

    if hasattr(command, "all_commands"):
        grp = cast(commands.Group, command)
        subcommands = await self.get_group_help_mapping(ctx, grp)

    if await ctx.embed_requested():
        emb = {
            "embed": {"title": "", "description": ""},
            "footer": {"text": ""},
            "fields": [],
        }

        if description:
            emb["embed"]["title"] = f"*{description[:2044]}*"

        emb["footer"]["text"] = tagline
        emb["embed"]["description"] = signature

        if command.help:
            splitted = command.help.split("\n\n")
            name = "__{0}__".format(splitted[0])
            value = "\n\n".join(splitted[1:]).replace("[p]", ctx.clean_prefix)
            if not value:
                value = EMPTY_STRING
            field = EmbedField(name[:252], value[:1024], False)
            emb["fields"].append(field)

        if subcommands:
            subtext = "\n".join(
                f"**{name}** {command.short_doc}"
                for name, command in sorted(subcommands.items())
            )
            for i, page in enumerate(pagify(subtext, page_length=1000, shorten_by=0)):
                if i == 0:
                    title = "**__Subcommands:__**"
                else:
                    title = "**__Subcommands:__** (continued)"
                field = EmbedField(title, page, False)
                emb["fields"].append(field)

        await self.make_and_send_embeds(ctx, emb)

    else:  # Code blocks:
        subtext = None
        subtext_header = None
        if subcommands:
            subtext_header = "Subcommands:"
            max_width = max(
                discord.utils._string_width(name) for name in subcommands.keys()
            )

            def width_maker(cmds):
                doc_max_width = 80 - max_width
                for nm, com in sorted(cmds):
                    width_gap = discord.utils._string_width(nm) - len(nm)
                    doc = com.short_doc
                    if len(doc) > doc_max_width:
                        doc = doc[: doc_max_width - 3] + "..."
                    yield nm, doc, max_width - width_gap

            subtext = "\n".join(
                f"  {name:<{width}} {doc}"
                for name, doc, width in width_maker(subcommands.items())
            )

        to_page = "\n\n".join(
            filter(
                None,
                (description, signature[1:-1], command.help, subtext_header, subtext),
            )
        )
        pages = [box(p) for p in pagify(to_page)]
        await self.send_pages(ctx, pages, embed=False)


# Traceback (discord.errors.Forbidden)
019-05-15 16:23:44] [ERROR] red: Exception in command 'help'
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/discord/ext/commands/core.py", line 63, in wrapped
ret = await coro(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/redbot/core/commands/help.py", line 513, in red_help
await ctx.bot.send_help_for(ctx, thing_to_get_help_for)
File "/usr/local/lib/python3.7/site-packages/redbot/core/bot.py", line 132, in send_help_for
return await self._help_formatter.send_help(ctx, help_for)
File "/usr/local/lib/python3.7/site-packages/redbot/core/commands/help.py", line 95, in send_help
await self.format_bot_help(ctx)
File "/usr/local/lib/python3.7/site-packages/redbot/core/commands/help.py", line 394, in format_bot_help
await self.send_pages(ctx, pages, embed=False)
File "/usr/local/lib/python3.7/site-packages/redbot/core/commands/help.py", line 500, in send_pages
await destination.send(page)
File "/usr/local/lib/python3.7/site-packages/discord/abc.py", line 776, in send
data = await state.http.send_message(channel.id, content, tts=tts, embed=embed, nonce=nonce)
File "/usr/local/lib/python3.7/site-packages/discord/http.py", line 218, in request
raise Forbidden(r, data)
discord.errors.Forbidden: FORBIDDEN (status code: 403): Cannot send messages to this user

# Fixed code
async def format_command_help(self, ctx: Context, obj: commands.Command):
    send = await ctx.bot.db.help.verify_exists()
    if not send:
        async for _ in self.help_filter_func(ctx, (obj,), bypass_hidden=True):
            # This is a really lazy option for not
            # creating a separate single case version.
            # It is efficient though
            #
            # We do still want to bypass the hidden requirement on
            # a specific command explicitly invoked here.
            send = True

    if not send:
        return

    command = obj

    description = command.description or ""
    tagline = (await ctx.bot.db.help.tagline()) or self.get_default_tagline(ctx)
    signature = (
        f"`Syntax: {ctx.clean_prefix}{command.qualified_name} {command.signature}`"
    )
    subcommands = None

    if hasattr(command, "all_commands"):
        grp = cast(commands.Group, command)
        subcommands = await self.get_group_help_mapping(ctx, grp)

    if await ctx.embed_requested():
        emb = {
            "embed": {"title": "", "description": ""},
            "footer": {"text": ""},
            "fields": [],
        }

        if description:
            emb["embed"]["title"] = f"*{description[:2044]}*"

        emb["footer"]["text"] = tagline
        emb["embed"]["description"] = signature

        if command.help:
            splitted = command.help.split("\n\n")
            name = "__{0}__".format(splitted[0])
            value = "\n\n".join(splitted[1:]).replace("[p]", ctx.clean_prefix)
            if not value:
                value = EMPTY_STRING
            field = EmbedField(name[:252], value[:1024], False)
            emb["fields"].append(field)

        if subcommands:

            def shorten_line(a_line: str) -> str:
                if len(a_line) < 70:  # embed max width needs to be lower
                    return a_line
                return a_line[:67] + "..."

            subtext = "\n".join(
                shorten_line(f"**{name}** {command.short_doc}")
                for name, command in sorted(subcommands.items())
            )
            for i, page in enumerate(pagify(subtext, page_length=1000, shorten_by=0)):
                if i == 0:
                    title = "**__Subcommands:__**"
                else:
                    title = "**__Subcommands:__** (continued)"
                field = EmbedField(title, page, False)
                emb["fields"].append(field)

        await self.make_and_send_embeds(ctx, emb)

    else:  # Code blocks:
        subtext = None
        subtext_header = None
        if subcommands:
            subtext_header = "Subcommands:"
            max_width = max(
                discord.utils._string_width(name) for name in subcommands.keys()
            )

            def width_maker(cmds):
                doc_max_width = 80 - max_width
                for nm, com in sorted(cmds):
                    width_gap = discord.utils._string_width(nm) - len(nm)
                    doc = com.short_doc
                    if len(doc) > doc_max_width:
                        doc = doc[: doc_max_width - 3] + "..."
                    yield nm, doc, max_width - width_gap

            subtext = "\n".join(
                f"  {name:<{width}} {doc}"
                for name, doc, width in width_maker(subcommands.items())
            )

        to_page = "\n\n".join(
            filter(
                None,
                (description, signature[1:-1], command.help, subtext_header, subtext),
            )
        )
        pages = [box(p) for p in pagify(to_page)]
        await self.send_pages(ctx, pages, embed=False)