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from typing import Optional

from appium.options.common.supports_capabilities import SupportsCapabilities

MJPEG_SCREENSHOT_URL = 'mjpegScreenshotUrl'


class MjpegScreenshotUrlOption(SupportsCapabilities):
    @property
    def mjpeg_screenshot_url(self) -> Optional[str]:
        """
        URL of a service that provides realtime device screenshots in MJPEG format.
        """
        return self.get_capability(MJPEG_SCREENSHOT_URL)

    @mjpeg_screenshot_url.setter
    def mjpeg_screenshot_url(self, value: str) -> None:
        """
        The URL of a service that provides realtime device screenshots in MJPEG format.
        If provided then the actual command to retrieve a screenshot will be
        requesting pictures from this service rather than directly from the server.
        """
        self.set_capability(MJPEG_SCREENSHOT_URL, value)