# File lib/rudy/aws/ec2/volume.rb, line 144
144:       def list_by_instance(instid, &each_vol)
145:         instid = instid.awsid if instid.is_a? Rudy::AWS::EC2::Instance
146:         volumes = list(:attached, &each_vol)
147:         volumes &&= volumes.select { |v| v.instid == instid }
148:         volumes
149:       end