code: def copy_to_device(self, device: str) -> LazyBuffer:
      if self.axis is None:
          return self.lbs[0].copy_to_device(device)
      sz = self.lbs[0].shape[self.axis]
      llbs = []
      for i, lb in enumerate(
          [lb.copy_to_device(device) for lb in self.lbs]
      ):
          pad_arg = tuple(
              (0, 0)
              if a != self.axis
              else (
                  sz * i,
                  max(0, self.shape[self.axis] - sz * (i + 1)),
              )
              for a in range(len(lb.shape))
          )
          llbs.append(lb.pad(pad_arg))
      return functools.reduce(lambda x, y: x.e(BinaryOps.ADD, y), llbs)
  
imports: from __future__ import annotations
  from typing import Optional, Union, Any, Tuple, List
  import functools
  from tinygrad.helpers import all_same, dedup, round_up, DEBUG
  from tinygrad.dtype import DType
  from tinygrad.ops import BinaryOps, LoadOps, UnaryOps, TernaryOps, ReduceOps
  from tinygrad.lazy import LazyBuffer, create_schedule
  from tinygrad.shape.shapetracker import ShapeTracker, sint
label_desc: Use image node_id 5 for calling the MultiLazyBuffer obj's underlying member method code with example usage: obj.copy_to_device(device) and returns: functools, self