code: def slice_segments(x, ids_str, segment_size=4):
      ret = torch.zeros_like(x[:, :, :segment_size])
      for i in range(x.size(0)):
          idx_str = ids_str[i]
          idx_end = idx_str + segment_size
          ret[i] = x[i, :, idx_str:idx_end]
      return ret
  
imports: import math
  import numpy
  import torch
  from torch import nn
  from torch.nn import functional
label_desc: Use image node_id 8 for calling a global function with example usage: slice_segments(x, ids_str, segment_size) and returns: ret