Problem reading python code
See sections 3.2 and 3.3 of the geojson standard.
It looks like value_geojson is a FeatureCollection object, which have a single member &quot;features&quot; which is a list of Feature objects.  So
value_geojson[&quot;features&quot;][0]

is now just the first Feature object.  Those have a few members, including &quot;properties&quot;, which is an arbitrary JSON object.  At that point we're outside of the geojson standard, so whatever &quot;title&quot; means is more context-specific.