# 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