def get_target_text(self):
        """ Description of what the target is: static fee / num blocks to confirm in / mempool depth """
        if self.method == FeeMethod.ETA:
            return self.eta_tooltip(self.value)
        elif self.method == FeeMethod.MEMPOOL:
            return self.depth_tooltip(self.value)
        elif self.method == FeeMethod.FEERATE:
            fee_per_byte = self.value/1000
            return format_fee_satoshis(fee_per_byte) + f" {util.UI_UNIT_NAME_FEERATE_SAT_PER_VBYTE}"
 Description of what the target is: static fee / num blocks to confirm in / mempool depth 
electrum/fee_policy.py