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: pypi.rs
    path of file: ./repos/pixi/src/lock_file
    
    the code of the file until where you have to start completion: use crate::consts::PROJECT_MANIFEST;
use crate::lock_file::{package_identifier, pypi_name_mapping};
use crate::project::manifest::{PyPiRequirement, SystemRequirements};
use crate::pypi_marker_env::determine_marker_environm
    
pub async fn amend_pypi_purls(conda_packages: &mut [RepoDataRecord]) -> miette::Result<()> {
    let conda_forge_mapping = pypi_name_mapping::conda_pypi_name_mapping().await?;
    for record in conda_packages.iter_mut() {
        pypi_name_mapping::amend_pypi_purls(record, conda_forge_mapping)?;
    }
    Ok(())
}