import PogoOCR
from google.oauth2 import service_account

credentials: service_account.Credentials

client = PogoOCR.OCRClient(credentials=credentials)
screenshot = PogoOCR.Screenshot.from_url(
    url="...",
    klass=PogoOCR.ScreenshotClass.ACTIVITY_VIEW,
)

request = client.open_request(screenshot, PogoOCR.Language.ENGLISH)

result = client.process_ocr(request)