remove ValueError in docstrings
@@ -154,7 +154,6 @@ def sample(net: BayesNet,
:param Axes ax: `matplotlib.axes.Axes <https://matplotlib.org/api/axes_api.html>`_.
If not set, a new one is created.
- :raises ValueError: If `sample_from` is empty
:raises ValueError: If `sample_from` contains vertices without labels.
:return: Dictionary of samples at an index (tuple) for each vertex label (str). If all the vertices in `sample_from` are scalar, the dictionary is only keyed by label.
