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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def apply(self, func, workers=1, job_size=10000):
 """Apply `func` to lines of text in parallel or sequential. Args: func : a function that takes a list of lines. """

    if workers == 1:
      for lines in self.iter_chunks(job_size):
        yield func(lines)
    else:
      with ProcessPoolExecutor(max_workers=workers) as executor:
        for result in executor.map(func, self.iter_chunks(job_size)):
          yield result