ontextual" class="external-link">contextual
package</a> interface.</p></li>
<li><p><code>policy</code>:<br>
A <strong>policy object</strong> that takes in a context and selects an
arm (action) at each timestep.<br>
Example: <code>BatchContextualLinTSPolicy</code>, or any compatible <a href="https://github.com/Nth-iteration-labs/contextual" class="external-link">contextual
package</a> policy.</p></li>
<li><p><code>horizon</code>:<br>
An <strong>integer</strong> specifying the number of timesteps (rounds)
per