    # File lib/fog/aws/requests/compute/delete_tags.rb, line 44
            def delete_tags(resources, tags)
              tagged = Array(resources).map do |resource_id|
                type = case resource_id
                when /^ami\-[a-z0-9]{8}$/i
                  'image'
                when /^i\-[a-z0-9]{8}$/i
                  'instance'
                when /^snap\-[a-z0-9]{8}$/i
                  'snapshot'
                when /^vol\-[a-z0-9]{8}$/i
                  'volume'
                end
                if type && ((type == 'image' && visible_images[resource_id]) || self.data["#{type}s""#{type}s"][resource_id])
                  { 'resourceId' => resource_id, 'resourceType' => type }
                else
                  raise(Fog::Service::NotFound.new("The #{type} ID '#{resource_id}' does not exist"))
                end
              end

              tags.each do |key, value|
                self.data[:tags][key][value] = self.data[:tags][key][value] - tagged
              end

              tagged.each do |resource|
                tags.each do |key, value|
                  tagset = self.data[:tag_sets][resource['resourceId']]
                  tagset.delete(key) if tagset.has_key?(key) && (value.nil? || tagset[key] == value)
                end
              end

              response = Excon::Response.new
              response.status = true
              response.body = {
                'requestId' => Fog::AWS::Mock.request_id,
                'return'    => true
              }
              response
            end