command     = charge_gen_range                   # command to execute, required
charge_path = BPYR_BF4_charge_collection.txt     # input file path, required
atomnm      = 24                                 # the processed atom number, required
percent     = 0.8             # optional, default is 0.8
stepsize    = 0.01            # optional, default is 0.01
nmround     = 3               # optional, default is 3
fname       = ChargeGenRange  # optional, default is ChargeGenRange
