Check whether we are in enable-admin mode.
         SROS requires us to do this:
        *A:HOSTNAME# enable-admin
        MINOR: CLI Already in admin mode.
        *A:HOSTNAME#
        *A:HOSTNAME# enable-admin
        Password:
        MINOR: CLI Invalid password.
        *A:HOSTNAME#

def check_enable_mode(self, check_string="CLI Already in admin mode"):
        """Check whether we are in enable-admin mode.
         SROS requires us to do this:
        *A:HOSTNAME# enable-admin
        MINOR: CLI Already in admin mode.
        *A:HOSTNAME#
        *A:HOSTNAME# enable-admin
        Password:
        MINOR: CLI Invalid password.
        *A:HOSTNAME#
        """
        output = self.send_command_timing("enable-admin")
        if re.search(r"ssword", output):
            # Just hit enter as we don't actually want to enter enable here
            self.write_channel(self.normalize_cmd(self.RETURN))
            self.read_until_prompt()
            return False
        elif check_string in output:
            return True
        raise ValueError("Unexpected response in check_enable_mode() method")