Enable Firmata reporting for a digital pin.

        :param command: {"method": "enable_digital_reporting", "params": [PIN]}
        :returns: {"method": "digital_message_reply", "params": [PIN, DIGITAL_DATA_VALUE]}

async def enable_digital_reporting(self, command):
        """
        Enable Firmata reporting for a digital pin.

        :param command: {"method": "enable_digital_reporting", "params": [PIN]}
        :returns: {"method": "digital_message_reply", "params": [PIN, DIGITAL_DATA_VALUE]}
        """
        pin = int(command[0])
        await self.core.enable_digital_reporting(pin)