@staticmethod
def run_checks(number_samples, k_choices):
    """Runs checks on `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)
