def _skip_string(self, string: str) -> bool:
    """
    Our version of the skip_string method from
    discord.ext.commands.view; used to find
    the prefix in a message, but allowing prefix
    to ignore case sensitivity
    """

    strlen = len(string)
    if self.buffer.lower()[self.index:self.index + strlen] == string:
        self.previous = self.index
        self.index += strlen
        return True
    return False