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: quick_start_spawn.rs
    path of file: ./repos/rerun/crates/re_viewer/data/quick_start_guides
    
    the code of the file until where you have to start completion: //! Spawn a viewer and log some data.

use rerun::{demo_util::grid, external::glam};

fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Create a new `RecordingStream` which stores data in memory.
    let r
    
fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Create a new `RecordingStream` which stores data in memory.
    let rec = rerun::RecordingStreamBuilder::new("rerun_example_quick_start_spawn").spawn()?;

    // Create some data using the `grid` utility function.
    let points = grid(glam::Vec3::splat(-10.0), glam::Vec3::splat(10.0), 10);
    let colors = grid(glam::Vec3::ZERO, glam::Vec3::splat(255.0), 10)
        .map(|v| rerun::Color::from_rgb(v.x as u8, v.y as u8, v.z as u8));

    // Log the "my_points" entity with our data, using the `Points3D` archetype.
    rec.log(
        "my_points",
        &rerun::Points3D::new(points)
            .with_colors(colors)
            .with_radii([0.5]),
    )?;

    // Show the viewer with the recorded data.

    Ok(())
}