random bool for random> random bool {flags} 
--bias, -b {number}: Adjusts the probability of a "true" outcome| input | output | 
|---|---|
| nothing | bool | 
Generate a random boolean value
>random bool
Generate a random boolean value with a 75% chance of "true"
>random bool--bias0.75
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    https://www.nushell.sh/commands/docs/random_bool.html