def METHOD_NAME(self, METHOD_NAME):
    """
    Disable SFP TX for all channels
    Args:
        tx_disable : A Boolean, True to enable tx_disable mode, False to disable
                     tx_disable mode.
    Returns:
        A boolean, True if tx_disable is set successfully, False if not
    """
    if self.sfp_type == QSFP_TYPE:
        return self.tx_disable_channel(0xF, METHOD_NAME)
    return False