How to retrieve the actual frame definition including all encapsulation using a script?

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How to retrieve the actual frame definition including all encapsulation using a script?
array set ret [stc::perform StreamBlockGetInfo -StreamBlock streamblock1] set totalStreamCount $ret(-TotalStreamCount) stc::perform GetPreviewData -StreamBlock streamblock1 -RowCount $totalStreamCount set hStreamPreviewData [stc::get streamblock1 -children-PreviewData]  puts "\n $hStreamPreviewData [stc::get $hStreamPreviewData]" set lstStreamPreviewColumn [stc::get $hStreamPreviewData -ColumnHeaders] set lstStreamPreviewData [stc::get $hStreamPreviewData -Data] puts "\n lstStreamPreviewData $lstStreamPreviewData " set index 1 foreach header $lstStreamPreviewColumn {       puts "\n Column $index. $header"       incr index } set index 1 foreach data $lstStreamPreviewData {       puts "\n $index. [split $data ";"]"       incr index }