Simple Invocation Tree


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open
| open
| read_info
| ensure_data
| release

open
| Open
| seek_root
| destroy

open
| Open
| destroy

open
| open
| tab_attrib
| col_index
| is_open
| close

or
| value

Non-AlphaABCDEFGHIJKLMNOPQRSTUVWXYZ