You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: mod.rs
    path of file: ./repos/sway/sway-core/src/asm_lang
    
    the code of the file until where you have to start completion: //! This module contains things that I need from the VM to build that we will eventually import
//! from the VM when it is ready.
//! Basically this is cop
    
    pub(crate) fn unowned_new_with_comment(opcode: VirtualOp, comment: impl Into<String>) -> Self {
        Op {
            opcode: Either::Left(opcode),
            comment: comment.into(),
            owning_span: None,
        }
    }