jobscheduler/src/main/java/me/tatarka/support/os/PersistableBundle.java
public String getString(String key, String defaultValue) {
        return PersistableBundleCompat.getString(bundle, key, defaultValue);
    }
public String getString(String key, String defaultValue) {
        return PersistableBundleCompat.getString(bundle, key, defaultValue);
    }
Returns the value associated with the given key, or defaultValue if no mapping of the desired
type exists for the given key or if a null value is explicitly associated with the given
key.

@param key          a String, or null
@param defaultValue Value to return if key does not exist or if a null value is associated
with the given key.
@return the String value associated with the given key, or defaultValue if no valid String
object is currently mapped to that key.