class_docstr: Generate a noisy version of a sentence, without changing words themselves.
class_docstr_tok: ["Generate","a","noisy","version","of","a","sentence",",","without","changing","words","themselves","."]
code: def noising(self, x, lengths, noising_prob=0.0):
      raise NotImplementedError()
  
imports: import numpy
  import torch
  from fairseq.data import data_utils
label_desc: Use image node_id 2 for calling the WordNoising obj's underlying member method code with example usage: obj.noising(x, lengths, noising_prob) without return types