Function tdb_core::dtf::file_format::decode_for_each

pub fn decode_for_each<F: for<'a> FnMut(&'a Update)>(
    fname: &str, 
    num_rows: Option<u32>, 
    f: &mut F
) -> Result<(), Error>

Decode the main section in a dtf file. Optionally read all or some num_rows batches. Pass in a closure for each update