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┃                                  Variables                                   ┃
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  Variable                               Description                            
 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 
  variable1                                                                     
  port basic mandatory                   A port variable.                       
  variable2                                                                     
  port standard mandatory                A port variable with default value.    
  Default: 8080                                                                 
  variable3                                                                     
  port standard mandatory                A port variable with integer default   
                                         value.                                 
  Default: 8080