@type t() :: %PolarExpress.Schemas.Meter{
  aggregation:
    PolarExpress.Schemas.CountAggregation.t()
    | PolarExpress.Schemas.PropertyAggregation.t()
    | PolarExpress.Schemas.UniqueAggregation.t()
    | nil,
  archived_at: DateTime.t() | nil,
  created_at: DateTime.t() | nil,
  filter: PolarExpress.Schemas.Filter.t() | nil,
  id: String.t() | nil,
  metadata: PolarExpress.Schemas.MetadataOutputType.t() | nil,
  modified_at: DateTime.t() | nil,
  name: String.t() | nil,
  organization_id: String.t() | nil
}