|coro|

        Creates a webhook for this channel.

        Requires :attr:`~.Permissions.manage_webhooks` permissions.

        .. versionchanged:: 1.1.0
            Added the ``reason`` keyword-only parameter.

        Parameters
        -------------
        name: :class:`str`
            The webhook's name.
        avatar: Optional[:class:`bytes`]
            A :term:`py:bytes-like object` representing the webhook's default avatar.
            This operates similarly to :meth:`~ClientUser.edit`.
        reason: Optional[:class:`str`]
            The reason for creating this webhook. Shows up in the audit logs.

        Raises
        -------
        HTTPException
            Creating the webhook failed.
        Forbidden
            You do not have permissions to create a webhook.

        Returns
        --------
        :class:`Webhook`
            The created webhook.

async def create_webhook(self, *, name, avatar=None, reason=None):
        """|coro|

        Creates a webhook for this channel.

        Requires :attr:`~.Permissions.manage_webhooks` permissions.

        .. versionchanged:: 1.1.0
            Added the ``reason`` keyword-only parameter.

        Parameters
        -------------
        name: :class:`str`
            The webhook's name.
        avatar: Optional[:class:`bytes`]
            A :term:`py:bytes-like object` representing the webhook's default avatar.
            This operates similarly to :meth:`~ClientUser.edit`.
        reason: Optional[:class:`str`]
            The reason for creating this webhook. Shows up in the audit logs.

        Raises
        -------
        HTTPException
            Creating the webhook failed.
        Forbidden
            You do not have permissions to create a webhook.

        Returns
        --------
        :class:`Webhook`
            The created webhook.
        """

        if avatar is not None:
            avatar = utils._bytes_to_base64_data(avatar)

        data = await self._state.http.create_webhook(self.id, name=str(name), avatar=avatar, reason=reason)
        return Webhook.from_state(data, state=self._state)