MessageOut

use fuel_types::{MessageId, Bytes32, Address};
pub struct MessageOut {
    pub message_id: MessageId,
    pub sender: Address,
    pub recipient: Address,
    pub amount: u64,
    pub nonce: Bytes32,
    pub len: u64,
    pub digest: Bytes32,
    pub data: Vec<u8>,
}

• A MessageOut receipt is generated as a result of the send_message() Sway method in which a message is sent to a recipient address along with a certain amount of coins.
• The data field currently supports only a vector of non-reference types rather than something like a struct.
• Read more about MessageOut in the Fuel protocol ABI spec