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/mun/crates/mun_codegen/src/code_gen/symbols
    
    the code of the file until where you have to start completion: use std::{collections::HashSet, convert::TryFrom, ffi::CString};

use inkwell::{attributes::Attribute, module::Linkage, types::AnyType};
use ir_type_builder::TypeIdBuilder;
use itertools::Itertools;
use mun_abi as abi;
use mun_hir::{HirDatabase, TyKind};

use crate::{
    ir::{
        dispatch_table::{DispatchTable, DispatchableFunction},
        function,
        ty::{guid_from_struct, HirTypeCache},
        type_table::TypeTable,
        types as ir,
    },
    type_info::HasStaticTypeId,
    value::{
        AsValue, CanInternalize, Global, IrValueCon
    
fn gen_set_allocator_handle_fn(context: &IrValueContext<'_, '_, '_>) {
    let set_allocator_handle_fn = context.module.add_function(
        "set_allocator_handle",
        Value::<fn(*const u8)>::get_ir_type(context.type_context),
        Some(Linkage::DLLExport),
    );

    let builder = context.context.create_builder();
    let body_ir = context
        .context
        .append_basic_block(set_allocator_handle_fn, "body");
    builder.position_at_end(body_ir);

    if let Some(allocator_handle_global) = context.module.get_global("allocatorHandle") {
        builder.build_store(
            allocator_handle_global.as_pointer_value(),
            set_allocator_handle_fn.get_nth_param(0).unwrap(),
        );
    }

    builder.build_return(None);
}