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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 find_postaggs_for(postagg_names, metrics_dict):
 """Return a list of metrics that are post aggregations"""

        postagg_metrics = [
            metrics_dict[name] for name in postagg_names
            if metrics_dict[name].metric_type == POST_AGG_TYPE
        ]
        # Remove post aggregations that were found
        for postagg in postagg_metrics:
            postagg_names.remove(postagg.metric_name)
        return postagg_metrics