Function hpke::SendExport

pub fn SendExport(
    config: HPKEConfig, 
    pkR: &HpkePublicKey, 
    info: &Info, 
    exporter_context: &ByteSeq, 
    L: usize, 
    psk: Option<Psk>, 
    psk_id: Option<PskId>, 
    skS: Option<HpkePrivateKey>, 
    randomness: Randomness
) -> Result<HPKECiphertext, HpkeError>

“single-shot” secret export sender

def SendExport<MODE>(pkR, info, exporter_context, L, ...):
  enc, ctx = Setup<MODE>S(pkR, info, ...)
  exported = ctx.Export(exporter_context, L)
  return enc, exported