CollorAPI.SectionDescriptor_03.swift

//--- SectionDescriptor

// new propertie
private(set) var verticalSpaces = [Int: VerticalSpace]()

@discardableResult public func reloadSection(_ builderClosure: @escaping BuilderClosure) -> SectionDescriptor {
    let builder = Builder(sectionDescriptor: self)
    builderClosure(builder)
    verticalSpaces = builder.verticalSpaces
    return reloadSection { cells in
        cells = builder.cells
    }
}