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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def dissolve(collection, aggfunc=None):
 # type: (BaseCollection, Optional[Callable[[list], Any]]) -> GeoFeature """Dissolves features contained in a FeatureCollection and applies an aggregation function to its properties. """

    new_properties = {}
    if aggfunc:
        temp_properties = defaultdict(list)  # type: DefaultDict[Any, Any]
        for feature in collection:
            for key, value in feature.attributes.items():
                temp_properties[key].append(value)

        for key, values in temp_properties.items():
            try:
                new_properties[key] = aggfunc(values)

            except Exception:
                # We just do not use these results
                pass

    return GeoFeature(collection.cascaded_union, new_properties)