rns: Returns a numba compatible dictionary with masses.</p>
<p>Raises: FileNotFoundError: If files are not found.</p>
<div class="cell">
<div class="sourceCode cell-code" id="cb4"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="cf">for</span> _ <span class="kw">in</span> mass_dict:</span>
<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a>    <span class="bu">print</span>(<sp