# File lib/fog/openstack/requests/compute/get_usage.rb, line 6
        def get_usage(tenant_id, date_start, date_end)
          params = Hash.new
          params[:start] = date_start.utc.iso8601.chop!
          params[:end]   = date_end.utc.iso8601.chop!
          request(
            :expects  => [200, 203],
            :method   => 'GET',
            :path     => "os-simple-tenant-usage/#{tenant_id}",
            :query    => params
          )
        end