code: def erf(x):
      t = (1 + 0.3275911 * x.abs()).reciprocal()
      return x.sign() * (
          1
          - (
              (
                  ((1.061405429 * t + -1.453152027) * t + 1.421413741)
                  * t
                  + -0.284496736
              )
              * t
              + 0.254829592
          )
          * t
          * (-(x.square())).exp()
      )
  
imports: from tinygrad.tensor import Tensor
  from tinygrad.nn import Linear, LayerNorm, Embedding
  from tinygrad.helpers import fetch, get_child
  from pathlib import Path
label_desc: Use image node_id 1 for calling a global function with example usage: erf(x) and returns: unknown