def each_content_stream
            contents = self.Contents

            return enum_for(__method__) do
                case contents
                when Array then contents.length
                when Stream then 1
                else
                    0
                end
            end unless block_given?

            case contents
            when Stream then yield(contents)
            when Array then contents.each { |stm| yield(stm.solve) }
            end
        end
def each_content_stream
            contents = self.Contents

            return enum_for(__method__) do
                case contents
                when Array then contents.length
                when Stream then 1
                else
                    0
                end
            end unless block_given?

            case contents
            when Stream then yield(contents)
            when Array then contents.each { |stm| yield(stm.solve) }
            end
        end
Iterates over all the ContentStreams of the Page.