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/// Interface for working with identifiable messages pub trait Identifiable { type Id: Copy + Eq; /// Get message ID /// /// ``` /// use spartan_lib::core::message::builder::MessageBuilder; /// use spartan_lib::core::payload::Identifiable; /// /// let message = MessageBuilder::default().body("Hello, world").compose().unwrap(); /// /// println!("Message ID is: {}", message.id()); /// ``` fn id(&self) -> Self::Id; }