code: public function log(string $file, int $batch): void
      {
          $stmt = $this->pdo->prepare("insert into {$this->table} (migration, batch) values (?, ?)");
          $stmt->bindParam(1, $file);
          $stmt->bindParam(2, $batch, PDO::PARAM_INT);
          $stmt->execute();
      }
docs: Log that a migration was run.
  
  @param  string $file
  @param  int $batch
  @return void