code: def __call__(self, x, x_lens):
      x = x.pad(((0, (-x.shape[0]) % self.factor), (0, 0), (0, 0)))
      x = x.reshape(
          x.shape[0] // self.factor,
          x.shape[1],
          x.shape[2] * self.factor,
      )
      return x, x_lens / self.factor if x_lens is not None else None
  
imports: from tinygrad.tensor import Tensor
  from tinygrad.jit import TinyJit
  from tinygrad.nn import Linear, Embedding
  from tinygrad.helpers import fetch
  import numpy
  from pathlib import Path
label_desc: Use image node_id 2 for calling the StackTime obj's underlying member method code with example usage: obj.__call__(x, x_lens) and returns: x,  unknown