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: module.rs
    path of file: ./repos/llvm-kaleidoscope-rs/src/llvm
    
    the code of the file until where you have to start completion: use llvm_sys::{
    core::{
        LLVMAddFunction, LLVMAppendBasicBlockInContext, LLVMCreateBasicBlockInConte
    
    pub fn add_fn(&'llvm self, name: &str, fn_type: Type<'llvm>) -> FnValue<'llvm> {
        debug_assert_eq!(
            fn_type.kind(),
            LLVMTypeKind::LLVMFunctionTypeKind,
            "Expected a function type when adding a function!"
        );

        let name = SmallCStr::try_from(name)
            .expect("Failed to convert 'name' argument to small C string!");

        let value_ref = unsafe { LLVMAddFunction(self.module, name.as_ptr(), fn_type.type_ref()) };
        FnValue::new(value_ref)
    }