so the download may take a while.
Note you may need to change the name of the HDF5 file to <cite>NGC6946_SN3.merged.cm1.1.0</cite>.</p>
<p>The region files used in the examples can be
found in the ‘Examples/regions’ folder. To run the examples, place these region files in the same
directory as the hdf5 file.</p>
<p>We should start by import the appropriate modules.</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="c1"># Imports</span>
<span class="kn">im