How to add browser type as a CLI argument to custom Browser in Playwright Pytest

Question

I have my own Browser class and created a new CLI argument to be able to execute tests with different browsers.

main conftest.py

def pytest_addoption(parser):
    parser.addoption('--browser_type', action="store", default="chromium")

def pytest_configure(config):
    os.environ["browser_type"] = config.getoption("browser_type")

folder conftest.py

@pytest.fixture(scope="class")
def page_custom():
    params = Browser.context_parameters
    if not Browser.running_chromium:
        Browser("chrome", **Browser.browser_parameters)
    context = Browser.open_new_context(**params)
    Browser.context = context
    page = context.new_page()
    Browser.page = page
    yield page
    page.close()

Do you have any idea how could I add the parametrize to page_custom method? Like

@pytest.mark.parametrize("browser_type", os.environ["browser_type"])
...

But not sure how should I change the page_custom to get this parameter in consideration and if I'm calling the test with --browser_type firefox then the test is using firefox