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from typing import Optional

from appium.options.common.supports_capabilities import SupportsCapabilities

ENSURE_WEBVIEWS_HAVE_PAGES = 'ensureWebviewsHavePages'


class EnsureWebviewsHavePagesOption(SupportsCapabilities):
    @property
    def ensure_webviews_have_pages(self) -> Optional[bool]:
        """
        Whether to ensure if web views have pages.
        """
        return self.get_capability(ENSURE_WEBVIEWS_HAVE_PAGES)

    @ensure_webviews_have_pages.setter
    def ensure_webviews_have_pages(self, value: bool) -> None:
        """
        Whether to skip web views that have no pages from being shown in getContexts
        output. The driver uses devtools connection to retrieve the information about
        existing pages. true by default since Appium 1.19.0, false if lower than 1.19.0.
        """
        self.set_capability(ENSURE_WEBVIEWS_HAVE_PAGES, value)