    # File lib/fog/aws/requests/compute/detach_network_interface.rb, line 31
            def detach_network_interface(attachment_id, force = false)
              response = Excon::Response.new
              nic_id = self.data[:network_interfaces].select { |k,v| v['attachment']['attachmentId'] == attachment_id} .first.first
              if nic_id
                self.data[:network_interfaces][nic_id]["attachment"] = {}
                response.status = 200
                response.body = {
                  'requestId' => Fog::AWS::Mock.request_id,
                  'return'    => true
                }
                response
              else
                raise Fog::Compute::AWS::NotFound.new("The network interface '#{network_interface_id}' does not exist")
              end
            end