docs: def _accept(random_sample: float, cost_diff: float,
              temp: float) -> Tuple[bool, float]:
      """Calculates probability and draws if solution should be accepted.
  
      Based on exp(-Delta*E/T) formula.
  
      Args:
          random_sample: Uniformly distributed random number in the range [0, 1).
          cost_diff: Cost difference between new and previous solutions.
          temp: Current temperature.
  
      Returns:
          Tuple of boolean and float, with boolean equal to True if solution is
          accepted, and False otherwise. The float value is acceptance
          probability.
      """
      exponent = -cost_diff / temp
      if exponent >= 0.0:
          return True, 1.0
      else:
          probability = math.exp(exponent)
      return probability > random_sample, probability