def METHOD_NAME(self) -> str:
    """Create a bank with a unique id."""
    self._id_count = self._id_count + 1
    table_manager = BanksTable(
        self.get_table(), signal_type_mapping=get_default_signal_type_mapping()
    )
    bank = table_manager.create_bank(
        f"TEST_Bank_{self._id_count}", "Test bank description"
    )
    return bank.bank_id