Function remove_duplicates

ci/ci-compile-concurrent-backup.py:265–272

(items: list[str])

def remove_duplicates(items: list[str]) -> list[str]:
    seen: set[str] = set()
    out: list[str] = []
    for item in items:
        if item not in seen:
            seen.add(item)
            out.append(item)
    return out


def choose_board_interactively(boards: list[str]) -> list[str]: