code: def sub(left, right, to_reuse=False):
      return ast.BinNumExpr(
          left, right, ast.BinNumOpType.SUB, to_reuse=to_reuse
      )
  
file_path: m2cgen/m2cgen/assemblers/utils.py
imports: import numpy
  from m2cgen import ast
label_desc: Use image node_id 4 for calling a global function with example usage: sub(left, right, to_reuse) and returns: ast