 from pysb import * <EOL> Model ( ) <EOL> Monomer ( '<STR_LIT:A>' ) 
 Parameter ( '<STR_LIT:k>' , <NUM_LIT> ) 
 from pysb import * <EOL> Model ( ) <EOL> Monomer ( '<STR_LIT:A>' ) <EOL> Parameter ( '<STR_LIT:k>' , <NUM_LIT> ) <EOL> Rule ( '<STR_LIT>' , None >> A ( ) , k ) </s>
