code: def round_up_to_256(x: int) -> int:
      """
      Round up to the nearest multiple of 256.
      """
      return x + (256 - x % 256)
  
file_path: deepspeed/tests/unit/inference/v2/model_implementations/sharding/test_mlp_sharding.py
imports: import pytest
  import torch
  from deepspeed.accelerator import get_accelerator
  from deepspeed.inference.v2.model_implementations.sharding import *
label_desc: Use image node_id 1 for calling a global function with example usage: round_up_to_256(x) and returns: unknown