class_docstr: Class that defines data loader
class_docstr_tok: ["Class","that","defines","data","loader"]
docstr: Decode a given line from index to word
  Args:
      tokens: List of indexes
  
  Returns:
      str, a sentence
docstr_tok: ["Decode","a","given","line","from","index","to","word","Args",":","tokens",":","List","of","indexes","Returns",":","str",",","a","sentence"]
code: def decode_line(self, tokens):
      """
      Decode a given line from index to word
      Args:
          tokens: List of indexes
  
      Returns:
          str, a sentence
      """
      return " ".join([self.idx2word[t] for t in tokens])
  
file_path: nlp-architect/nlp_architect/data/ptb.py
imports: import os
  import sys
  import numpy
  import urllib.request
label_desc: Use image node_id 7 for calling the PTBDataLoader obj's underlying member method code with example usage: obj.decode_line(tokens) and returns: str