
  get_internal_status - Returns the internal status of the system.
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   get_internal_status [-h]
   
   Prints out the internal status of the system. i.e.
     * -1 : read_model has not yet been executed or an error occured
       during its execution.
     * 0 : flatten_hierarchy has not yet been executed or an error
       occured during its execution.
     * 1 : build_variables has not yet been executed or an error occured
       during its execution.
     * 2 : build_model has not yet been executed or an error occured
       during its execution.
     * 3 : compute_fairness has not yet been executedor an error occured
       during its execution.
       
   Command options:
   
   -h
          Prints the command usage.
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   Last updated on 990119 20h08
