internal: None,
          range: None,
          next: None,
        })
        .collect(),
    })
  }

  fn load_wallet(&self, wallet: String) -> Result<LoadWalletResult, jsonrpc_core::Error> {
    if self.state().wallets.contains(&wallet) {
      self.state().loaded_wallets.insert(wallet.clone());
      Ok(LoadWalletResult {
        name: wallet,
        warning: None,
      })
    } else {
      Err(Self::not_found())
    }
  }

  fn list_wallets(&self) -> Result<Vec<String>, jsonrpc_core::Error> {
    Ok(
      self
        .state()
        .loaded_wallets
        .clone()
        .into_iter()
        .collect::<Vec<String>>(),
    )
  }
}