anchor.diff:  ----
   int *inform_random_series(size_t n, int b);
   ----
  +[horizontal]
  +Headers::
  +    `inform/utilities.h`,
  +    `inform/utilities/random.h`
   ****
   
   [[transition-probability-matrix]]
  
positive.code: int inform_coalesce(int const *series, size_t n, int *coal,
          inform_error *err);
  ----
  ****
  
  [[encoding-states]]
  
negative.code:         int const *b, size_t const *parts, size_t nparts, int *box,
          inform_error *err);
  ----
  [horizontal]
  Headers::
      `inform/utilities.h`,
      `inform/utilities/black_boxing.h`
  ****
  
  [[coalescing-time-series]]
  