query GetForecast($target: DASTargetInput!, $date_from: String!, $date_to: String!) {
  inventory_manager {
    forecast(
      target: $target
      date_from: $date_from
      date_to: $date_to
    ) {
      forecast_start_date
      forecast_end_date
      count
    }
  }
}

{
  "target": {
    "im_adunits": ["SITE", "SITE2", "SITE3"]
  },
  "date_from": "2025-01-01",
  "date_to": "2025-01-31"
}