get other account's public calendar

[djwgit]

possible to get another account's public calendar ?
as the function in viewpoint : https://github.com/WinRb/Viewpoint

cli = Viewpoint::EWSClient.new(endpoint, user, pass)
start_time = DateTime.parse("2015-06-24").iso8601
end_time = DateTime.parse("2015-06-26").iso8601
user_free_busy = cli.get_user_availability(['conference_room1@company.com'],
start_time: start_time,
end_time: end_time,
requested_view: :free_busy)
busy_times = user_free_busy.calendar_event_array