code: def get_aggregation_groupby(feature, feature_descriptions=None):
      if feature_descriptions is None:
          feature_descriptions = {}
      groupby_name = feature.dataframe.ww.index
      groupby = ft.IdentityFeature(
          feature.entityset[feature.dataframe_name].ww[groupby_name],
      )
      if (
          groupby in feature_descriptions
          or groupby.unique_name() in feature_descriptions
      ):
          return feature_descriptions.get(
              groupby
          ) or feature_descriptions.get(
              groupby.unique_name(),
          )
      else:
          return '"{}" in "{}"'.format(
              groupby_name, feature.dataframe_name
          )
  
imports: import json
  import featuretools
label_desc: Use image node_id 4 for calling a global function with example usage: get_aggregation_groupby(feature, feature_descriptions) and returns: unknown, str