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: env.rs
    path of file: ./repos/kani/cprover_bindings/src
    
    the code of the file until where you have to start completion: // Copyright Kani Contributors
// SPDX-License-Identifier: Apache-2.0 OR MIT
//! Find mod.rs for centralized documentation
//!
//! This file contains set up code for CBMC symbol table. It modifies a default table based on
//! the current compilation instance's session information.
//!
//! c.f. CBMC code [src/ansi-c/ansi_c_internal_additions.cpp].
//! One possible invocation of this insert
    
pub fn additional_env_symbols() -> Vec<Symbol> {
    vec![
        Symbol::builtin_function("__CPROVER_initialize", vec![], Type::empty()),
        Symbol::typedef("__CPROVER_size_t", "__CPROVER_size_t", Type::size_t(), Location::none()),
        Symbol::static_variable(
            "__CPROVER_memory",
            "__CPROVER_memory",
            Type::unsigned_int(8).infinite_array_of(),
            Location::none(),
        )
        .with_is_extern(true),
    ]
}