code: def run_checks(number_samples, k_choices):
          
          assert isinstance(k_choices, int), \
              "Number of optimal trajectories should be an integer"
  
          if k_choices < 2:
              raise ValueError(
                  "The number of optimal trajectories must be set to 2 or more.")
          if k_choices >= number_samples:
              msg = "The number of optimal trajectories should be less than the \
                      number of samples"
              raise ValueError(msg)
docs: Runs checks on `k_choices`