Exchange

public class System.Exchange : System.Any
{
    static method Allocate(bytes: i64) -> u8*
    static method Release(block: u8*) -> void
    // A packet with a copy of `bytes`.
    static method PackBytes(bytes: u8[]) -> u8*
    // A packet with a copy of the text's UTF-8 bytes.
    static method Pack(text: System.String<u8>) -> u8*
    // How many bytes a packet carries.
    static method Length(packet: u8*) -> i32
    // The packet's bytes, copied into this domain; the packet is freed.
    static method Bytes(packet: u8*) -> u8[]
    // The packet's bytes as text of this domain; the packet is freed.
    static method Text(packet: u8*) -> System.String<u8>
    // Frees a packet nobody takes.
    static method Free(packet: u8*) -> void
}