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write_with_header

expry::raw_utils

Function write_with_header 

Source 
pub fn write_with_header<T, E, E2, Output, Header, Body>(
    writer: &mut Output,
    header: Header,
    body: Body,
) -> Result<T, E2>
where
    Output: RawOutput<E>,
    Header: FnOnce(&mut Output, u64) -> Result<(), E>,
    Body: FnOnce(&mut Output) -> Result<T, E2>,
    E2: From<E>,