Trait hyper::header::HeaderFormat
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pub trait HeaderFormat: Debug + HeaderClone + Any + Typeable + Send + Sync { fn fmt_header(&self, f: &mut Formatter) -> Result; }
A trait for any object that will represent a header field and value.
This trait represents the formatting of a Header
for output to a TcpStream.
Required Methods
fn fmt_header(&self, f: &mut Formatter) -> Result
Format a header to be output into a TcpStream.
This method is not allowed to introduce an Err not produced by the passed-in Formatter.