Function get_bool 

pub fn get_bool(key: &str, fallback: bool) -> bool

Safely parse boolean variables. Recognizes “true”, “1”, “yes”, “on” as true, and “false”, “0”, “no”, “off” as false. If the variable is unset or unrecognized, returns the fallback value.

Examples

use rskit_util::env::get_bool;
let is_enabled = get_bool("FEATURE_FLAG", false);