let inscriptions = index.get_inscriptions(&unspent_outputs)?;

    let satpoint = match self.outgoing {
      Outgoing::SatPoint(satpoint) => {
        for inscription_satpoint in inscriptions.keys() {
          if satpoint == *inscription_satpoint {
            bail!("inscriptions must be sent by inscription ID");
          }
        }
        satpoint
      }
      Outgoing::InscriptionId(id) => index
        .get_inscription_satpoint_by_id(id)?
        .ok_or_else(|| anyhow!("Inscription {id} not found"))?,
      Outgoing::Amount(amount) => {
        Self::lock_inscriptions(&client, inscriptions, unspent_outputs)?;
        let txid = Self::send_amount(&client, amount, address, self.fee_rate.n())?;
        return Ok(Box::new(Output { transaction: txid }));
      }
    };

    let change = [
      get_change_address(&client, chain)?,
      get_change_address(&client, chain)?,
    ];

    let postage = if let Some(postage) = self.postage {
      Target::ExactPostage(postage)
    } else {
      Target::Postage