code: def main():
      if len(sys.argv) != 2:
          print("Usage: python parse_result_csv.py <result.csv file>")
          exit(0)
      generate_perf_report(sys.argv[1])
      generate_graphs(sys.argv[1])
  
imports: import pandas
  import sys
  import matplotlib.pyplot
  from matplotlib.lines import Line2D
label_desc: Use image node_id 3 for calling a global function with example usage: main() without return types