package tb_pkg;
  import "DPI-C" context function int dist_arb (   // returns an int between xmin and 
                                  input int mode,  // and xmax according to the distribution
                                  input int xmin,  // in the csv file arbitrary_distribution_file.txt.
                                  input int xmax); // Call this first and once with mode==0 to set up.
endpackage