def get_expr_args(expr):
    """
    Get arguments of an expression node
    """
    if expr.op in ['binop', 'inplace_binop']:
        return [expr.lhs, expr.rhs]
    if expr.op == 'call':
        return [v for v in expr.args]
    raise NotImplementedError("get arguments for expression {}".format(expr))

    Get arguments of an expression node
    
numba/parfors/parfor.py