DateStartDimension Model

Nullable
Part : DatePart

Setting this to anything other than "All" (or null) will cause DateStart to be dimensioned ONLY using that part of the date. The results will
mean that the returned aggregates will have DateStart set to null and DateStartPart set to requested part instead

OrderBy : bool

If set, the PeriodStart/PeriodStartPart will be ordered by according to OrderByDirection. Setting other aggregates to orderby=true in a single query will have an undefined sort ordering

Nullable
OrderByDirection : OrderableDirection

The direction in which to sort if OrderBy is set to true

Include : bool

If set, this dimension will be included as a dimension in the result set.

Example
{
  "Part": 1,
  "OrderBy": true,
  "OrderByDirection": 1,
  "Include": true
}