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from typing import Optional

from appium.options.common.supports_capabilities import SupportsCapabilities

MARIONETTE_PORT = 'marionettePort'


class MarionettePortOption(SupportsCapabilities):
    @property
    def marionette_port(self) -> Optional[int]:
        """
        The number of the port for the Marionette server to listen on.
        """
        return self.get_capability(MARIONETTE_PORT)

    @marionette_port.setter
    def marionette_port(self, value: int) -> None:
        """
        Selects the port for Geckodriver’s connection to the Marionette
        remote protocol. The existing Firefox instance must have Marionette
        enabled. To enable the remote protocol in Firefox, you can pass the
        -marionette flag. Unless the marionette.port preference has been
        user-set, Marionette will listen on port 2828, which is the default
        value for this capability.
        """
        self.set_capability(MARIONETTE_PORT, value)