Airship\Engine\Security\Authentication::migrateImportedHash PHP Method

    public function migrateImportedHash(HiddenString $password, HiddenString $passwordHash, array $userData = []) : bool
    {
        if (!isset($userData['migration']['type'])) {
            throw new SecurityAlert(\__('No migration type registered.'));
        }
        $migration = Gadgets::loadMigration($userData['migration']['type']);
        $migration->setPasswordKey($this->key);
        $table = $this->db->escapeIdentifier($this->tableConfig['table']['accounts']);
        if ($migration->validate($password, $passwordHash, $userData['migration'])) {
            $this->db->beginTransaction();
            // We now know the plaintext. Let's replace their password.
            $this->db->update($table, ['password' => Password::hash($password->getString(), $this->key), 'migration' => null], ['userId' => $userData['userid']]);
            return $this->db->commit();
        }
        return false;
    }