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/gfx/src/backend/webgpu/src
    
    the code of the file until where you have to start completion: use std::borrow::Borrow;

use hal::{
    adapter::{Adapter, AdapterInfo, DeviceType, Gpu, MemoryProperties},
    device::CreationError,
    format, image,
    queue::{QueueFamilyId, QueuePriority, QueueType},
    Features,
};

use wasm_bindgen_futures::JsFuture;

mod command;
mod device;
mod window;

pub use crate::command::{CommandBuffer, CommandPool, Queue};
pub use crate::device::Device;
pub u
    
fn map_wgpu_adapter_to_hal_adapter(adapter: web_sys::GpuAdapter) -> Adapter<Backend> {
    let info = AdapterInfo {
        name: adapter.name(),
        // WebGPU doesn't provide us with information about the adapter type
        vendor: 0,
        device: 0,
        device_type: DeviceType::Other,
    };
    let physical_device = PhysicalDevice(adapter);
    let queue_family = QueueFamily {};

    Adapter {
        info,
        physical_device,
        queue_families: vec![queue_family],
    }
}