Function bc4py_hash::seekfile::seek_file

pub fn seek_file(
    path: &Path, 
    start: usize, 
    end: usize, 
    previous_hash: &[u8], 
    target: &[u8], 
    time: u32, 
    multi: bool
) -> Result<(u32, Vec<u8>), String>

seek a optimized plot file

return (nonce, workHash)