Record = dict[str, Any]

def main() -> None:
  with open("data.csv") as f:
    reader = csv.DictReader(f)
    data: list[Record] = list(reader)

    processed_data: list[Record] = []
    for row in data:
      row_copy = row.copy()
      if row_copy["status"] == "active":
        row_copy["is_active"] = True
      else:
        row_copy["is_active"] = False
      processed_data.append(row_copy)

    with open("processed.csv", "w") as f:
      writer = csv.DictWriter(f, fieldnames=["name", "status", "is_active"])
      writer.writeheader()
      writer.writerows(processed_data)