Function decode_transport_request_for 

pub fn decode_transport_request_for<TTransport, TValue>(
    transport: &TTransport,
    headers: &HeaderMap,
    capabilities: &RouteTransportCapabilities,
    body: &[u8],
) -> Result<TValue, CoolError>
where
    TTransport: HttpTransport,
    TValue: for<'de> Deserialize<'de>,