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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_area(self, area_id, resolve_missing=False):
 """ Get an area by its ID. :param area_id: The area ID :type area_id: Integer :param resolve_missing: Query the Overpass API if the area is missing in the result set. :return: The area :rtype: overpy.Area :raises overpy.exception.DataIncomplete: The requested way is not available in the result cache. :raises overpy.exception.DataIncomplete: If resolve_missing is True and the area can't be resolved. """

        areas = self.get_areas(area_id=area_id)
        if len(areas) == 0:
            if resolve_missing is False:
                raise exception.DataIncomplete("Resolve missing area is disabled")

            query = ("\n"
                     "[out:json];\n"
                     "area({area_id});\n"
                     "out body;\n"
                     )
            query = query.format(
                area_id=area_id
            )
            tmp_result = self.api.query(query)
            self.expand(tmp_result)

            areas = self.get_areas(area_id=area_id)

        if len(areas) == 0:
            raise exception.DataIncomplete("Unable to resolve requested areas")

        return areas[0]