Function http_download 

pub fn http_download(
    _py: Python<'_>,
    url: String,
    filepath: String,
    params: Option<&Bound<'_, PyAny>>,
    headers: Option<HashMap<String, String>>,
    timeout_secs: Option<u64>,
) -> PyResult<()>

Downloads a file from URL to filepath using streaming.

Uses reqwest::blocking::Client to stream the response directly to disk, avoiding loading large files into memory.

Errors

Returns an error if:

• Parent directories cannot be created.
• The HTTP client fails to build.
• The HTTP request fails (e.g., network error, timeout, invalid URL).
• The server returns a non-success status code.
• The file cannot be created or written to.
• The params argument is not a dict.