@staticmethod
def get_branch(channel: str) -> str:
    if (channel in ChannelMap.channel_map):
        return ChannelMap.channel_map[channel]['branch']
    else:
        raise Exception(('Channel %s is not supported. Supported channels %s' % (channel, ChannelMap.get_supported_channels())))
@staticmethod
def get_branch(channel: str) -> str:
    if (channel in ChannelMap.channel_map):
        return ChannelMap.channel_map[channel]['branch']
    else:
        raise Exception(('Channel %s is not supported. Supported channels %s' % (channel, ChannelMap.get_supported_channels())))