(list
  (cons '_modelSwarm
       (
        make-instance 'ModelSwarm
                      #:numAgents 400
		      #:worldXSize 100
		      #:worldYSize 100
            	      #:alpha 1
		      #:replacement 1
		      #:maxVision 6
                      #:maxMetabolism 4
                      #:minInitialSugar 5
                      #:maxInitialSugar 25
                      #:deathAgeMin 9999997
                      #:deathAgeMax 9999999
                      )
         )
 )