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: lib.rs
    path of file: ./repos/stretch/bindings/swift/StretchCore/src
    
    the code of the file until where you have to start completion: use std::f32;
use std::os::raw::*;
use stretch::geometry::*;
use stretch::node::*;
use stretch::number::*;
use stretch::style::*;

#[repr(C)]
pub struct StretchSize {
    width
    
pub unsafe extern "C" fn stretch_node_remove_child(stretch: *mut c_void, node: *mut c_void, child: *mut c_void) {
    let mut stretch = Box::from_raw(stretch as *mut Stretch);
    let node = Box::from_raw(node as *mut Node);
    let child = Box::from_raw(child as *mut Node);

    stretch.remove_child(*node, *child).unwrap();

    Box::leak(stretch);
    Box::leak(node);
    Box::leak(child);
}