# File lib/fog/aws/requests/compute/associate_dhcp_options.rb, line 35
        def associate_dhcp_options(dhcp_options_id, vpc_id)
          response = Excon::Response.new
          if dhcp_options_id && vpc_id
            response.status = 200
            response.body = {
              'requestId' => Fog::AWS::Mock.request_id,
              'return' => true
            }
            response
          else
            if !dhcp_options_id
              message << 'The request must contain the parameter dhcp_options_id'
            elsif !vpc_id
              message << 'The request must contain the parameter vpc_id'
            end
            raise Fog::Compute::AWS::Error.new(message)
          end
        end