# File lib/AWS/EC2/instances.rb, line 157
157:       def reboot_instances( options = {} )
158:         options = { :instance_id => [] }.merge(options)
159:         raise ArgumentError, "No instance IDs provided" if options[:instance_id].nil? || options[:instance_id].empty?
160:         params = pathlist("InstanceId", options[:instance_id])
161:         return response_generator(:action => "RebootInstances", :params => params)
162:       end