seq char for generators> seq char {flags} (start) (end)
start: start of character sequence (inclusive)end: end of character sequence (inclusive)| input | output | 
|---|---|
| nothing | list<string> | 
sequence a to e
>seq charae
╭───┬───╮
│0│a│
│1│b│
│2│c│
│3│d│
│4│e│
╰───┴───╯
sequence a to e, and put the characters in a pipe-separated string
>seq charae|str join'|'
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