<commit_before>require "singleton"

module Pwrake

  class Writer
    include Singleton

    def initialize
      @out = $stdout
      @mutex = Mutex.new
      @mutex_hb = Mutex.new
      @cond_hb = true
      @heartbeat = nil
      @thread = Thread.new{ heartbeat_loop }<commit_msg>change initial writer from  to<commit_after>require "singleton"

module Pwrake

  class Writer
    include Singleton

    def initialize
      @out = $stderr
      @mutex = Mutex.new
      @mutex_hb = Mutex.new
      @cond_hb = true
      @heartbeat = nil
      @thread = Thread.new{ heartbeat_loop }
{'fraction_non_alphanumeric': 0.07890222984562607, 'fraction_numerical': 0.0, 'mean_word_length': 2.4761904761904763, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '2238254', 'n_tokens_mistral': 190, 'n_tokens_neox': 179, 'n_words': 50}