#[config_changed_event_handler]Expand description
Proc macro which is set on a function that need to be called whenever a configuration change event is happening. The function must accept a [Context] and [&&str] that contains the names of the configiration values that was changed.
Example:
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#[config_changed_event_handler]
fn configuration_changed_event_handler(ctx: &Context, values: &[&str]) { ... }