Aggregation entities are required by the API consistency guidelines for API Consistency Guidelines#AnalyticsAPIs. These are used to summarize annotations for a given dataset and will be used to populate UI elements. Aggregations need to have the fields that identify the exact scope that they're summarizing. Any filters applied to the list API, have to show up in the aggregation.
Aggregation entities are required by the API consistency guidelines for API Consistency Guidelines#AnalyticsAPIs. These are used to summarize annotations for a given dataset and will be used to populate UI elements. Aggregations need to have the fields that identify the exact scope that they're summarizing. Any filters applied to the list API, have to show up in the aggregation.