# File lib/AWS/EC2/instances.rb, line 223 223: def unmonitor_instances( options = {} ) 224: options = { :instance_id => [] }.merge(options) 225: raise ArgumentError, "No :instance_id provided" if options[:instance_id].nil? || options[:instance_id].empty? 226: params = pathlist("InstanceId", options[:instance_id]) 227: return response_generator(:action => "UnmonitorInstances", :params => params) 228: end