Function read_metadata 

pub fn read_metadata<P: AsRef<Path>>(
    path: P,
) -> Result<ReadStatMetadata, ReadStatError>

Reads file-level and variable metadata from a .sas7bdat file without loading any row data.

This delegates to ReadStatReader::metadata.

let md = readstat::read_metadata("data.sas7bdat")?;
println!("{:?} rows x {} columns", md.row_count, md.var_count);

Errors

Returns ReadStatError if the path is invalid or FFI parsing fails.