code: def render_alu(
      self,
      op,
      a: Register,
      b: Union[Register, int, float],
      dtype=dtypes.int32,
  ) -> Register:
      key = (op, a, b)
      if key not in self.tor:
          # if not isinstance(b, Register): b = render_numnode(b)
          self.ins.append(
              AssemblyInstruction(
                  UOps.ALU,
                  self.newreg(
                      key,
                      dtype=dtype,
                      scalar=a.scalar
                      and (not isinstance(b, Register) or b.scalar),
                  ),
                  [a, b],
                  op,
              )
          )
      return self.tor[key]
  
imports: from typing import Tuple, List, NamedTuple, Any, Dict, Optional, Union, DefaultDict, cast
  from tinygrad.codegen.linearizer import UOps, MemOp, UOp
  from tinygrad.ops import BinaryOps, UnaryOps
  from tinygrad.dtype import DType, dtypes
  from tinygrad.helpers import DEBUG
  from tinygrad.shape.symbolic import Variable, NumNode, MulNode, DivNode, ModNode, LtNode, SumNode, AndNode
  import functools
  import math
  from collections import defaultdict
label_desc: Use image node_id 4 for calling the AssemblyLanguage obj's underlying member method code with example usage: obj.render_alu(op, a, b, dtype) and returns: self