code: def torch_abs(input, *, out=None):
      assert out is None, "out is not supported yet"
      return torch.empty(input.shape, device="meta")
  
file_path: ColossalAI/colossalai/fx/tracer/meta_patch/patched_function/arithmetic.py
imports: import torch
  from ...registry import meta_patched_function
label_desc: Use image node_id 2 for calling a global function with example usage: torch_abs(input) and returns: torch