AssignableDocumentView
public init(document: SwiftUICore.Binding<Assignables.AssignableDocumentView.Document>, activePartID: Assignables.MergeablePartsContainerPartID? = nil, hiddenPartIDs: [Assignables.MergeablePartsContainerPartID] = [], selectedPageID: SwiftUICore.Binding<Assignables.AssignableDocumentView.Document.Page.ID?>? = nil, selectedQuestionID: SwiftUICore.Binding<Assignables.AssignableDocumentView.Document.Question.ID?>? = nil, showsPageThumbnails: Swift.Bool = true, isStructureEditingEnabled: Swift.Bool = true, allowsPencilDrawing: Swift.Bool = true, onMarkupActivation: @escaping (_ isMarkupActivated: Swift.Bool) -> Swift.Void)