Dimensions specify how to organize the results of an execution in a data view.
export interface IDimension
Imagine an attribute in columns vs. rows. Each dimension requires the itemIdentifiers property, which is an array of items. These items could be attributes' localIdentifiers or a special 'measureGroup' identifier.
The 'measureGroup' can be used to specify that all measures in the execution definition should be included in the dimension.
|List of localIdentifier's of attribute to put in this dimension.
|(Optional) List of totals to include in this dimension.