/// Returns the root of the chain.
Returns the root of the chain.
Returns the root of the chain .
pub fn root(&self) -> &TlsPublicKeyCert {
        self.chain
            .get(Self::root_index())
            .expect("invariant violated: chain is empty")
    }
pub fn root ( & self ) -> & TlsPublicKeyCert { self . chain . get ( Self :: root_index ( ) ) . expect ( " " ) }
Returns the root of the chain.
Returns the root of the chain .
&self