Type Alias OperationState 

pub type OperationState = Option<Box<dyn Any + Send>>;

Whatever Hooks::on_operation_start hands the matching Hooks::on_operation_end.

Aliased Type

pub enum OperationState {
    None,
    Some(Box<dyn Any + Send>),
}

Variants

None

No value.

Some(Box<dyn Any + Send>)

Some value of type T.