code: def _lcm(a, b):
      return a // _gcd(a, b) * b
  
imports: import ast
  import re
  import sys
  import warnings
  from ..exceptions import DTypePromotionError
  from .multiarray import dtype, array, ndarray, promote_types
label_desc: Use image node_id 18 for calling a global function with example usage: _lcm(a, b) and returns: unknown