Type Alias Outcome 

pub type Outcome = Result<(), FailureReason>;

How a request ended.

Ok(()) means the relay chain applied it, Err(reason) that it did not. Shared by every response in this protocol rather than one outcome type per request, the same way a pallet has one Error enum instead of one per extrinsic. Encodes as 0x00 for success and 0x01 plus the reason for failure.

Aliased Type

pub enum Outcome {
    Ok(()),
    Err(FailureReason),
}

Variants

Ok(())

Contains the success value

Err(FailureReason)

Contains the error value