code: def getnodeandedge(node, src, tgt):
      for child in node.children:
          src.append(node.token)
          tgt.append(child.token)
          getnodeandedge(child, src, tgt)
  
file_path: amain/get_matrix.py
imports: import numpy
  import javalang
  from javalang.ast import Node
  from anytree import AnyNode
  import time
  import os
  from multiprocessing import Pool
  from functools import partial
label_desc: Use image node_id 6 for calling a global function with example usage: getnodeandedge(node, src, tgt) without return types