code: def mul(*args):
      return reduce(lambda a, b: a * b, args, 1)
  
file_path: sympy/sympy/strategies/tests/test_tree.py
imports: from sympy.strategies.tree import treeapply, greedy, allresults, brute
  from functools import partial, reduce
label_desc: Use image node_id 6 for calling a global function with example usage: mul() and returns: reduce